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NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

January, 2021 to December, 2021

Index includes 2352 messages. Sorted alphabetically by author.

                    
Re: Christmas week QuizzesAdrian F1 Jan 2021, 20:58
Re: Running down an Astro-Position LineAdrian F14 Mar 2021, 17:10
Re: Running down an Astro-Position LineAdrian F16 Mar 2021, 11:14
Re: Stick shadows and sundial curvesAdrian F31 May 2021, 12:41
Re: Stick shadows and sundial curvesAdrian F1 Jun 2021, 12:12
Re: Calculate new coordinates given bearing and distance?Adrian F6 Nov 2021, 16:44
Re: A series of articles appearing in Ocean NavigatorAl Stewart4 Apr 2021, 00:49
Re: Heath Hezzanith?Al Stewart16 Jun 2021, 17:21
Anyone have a 1980's Tamaya Instruction Manual?Al Stewart5 Oct 2021, 17:29
Re: Hezzanith SextantAl Stewart26 Oct 2021, 15:57
Re: Hezzanith SextantAl Stewart26 Oct 2021, 16:09
Re: Astro slide ruleAlan S5 Jan 2021, 00:24
Re: Lifeboat sextant instruction bookletAlan S7 Jan 2021, 18:54
Re: Lifeboat sextant instruction bookletAlan S8 Jan 2021, 04:01
Re: Old Sextant - Charles HutchinsonAlan S14 Jan 2021, 01:07
Re: Traditional navigation by slide ruleAlan S14 Jan 2021, 01:21
Re: Free Downloadable Electronic Navigation GuideAlan S15 Jan 2021, 23:27
Circular slide rule type deviceAlan S18 Jan 2021, 04:18
Flat BygraveAlan S19 Jan 2021, 04:16
Re: Flat BygraveAlan S19 Jan 2021, 22:05
Re: CP-300/U USAF Star FinderAlan S22 Jan 2021, 23:10
Re: Astro slide ruleAlan S27 Jan 2021, 00:23
Re: CP-300/U USAF Star FinderAlan S8 Feb 2021, 17:40
On this CP-300\U, recently discussed.Alan S11 Feb 2021, 21:14
Re: On this CP-300\U, recently discussed.Alan S12 Feb 2021, 16:25
Re: On this CP-300\U, recently discussed.Alan S12 Feb 2021, 20:32
Re: On this CP-300\U, recently discussed.Alan S12 Feb 2021, 23:16
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureAlan S1 Apr 2021, 23:16
A series of articles appearing in Ocean NavigatorAlan S3 Apr 2021, 20:42
Re: A series of articles appearing in Ocean NavigatorAlan S4 Apr 2021, 02:53
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Alan S11 Apr 2021, 16:52
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Alan S30 Apr 2021, 21:11
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Alan S2 May 2021, 02:24
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Alan S3 May 2021, 16:15
NavList website and cookiesAlan S15 May 2021, 02:22
Re: NavList website and cookiesAlan S17 May 2021, 18:02
Re: NavList website and cookiesAlan S18 May 2021, 23:29
Re: CN Aboard Commercial FlightAlan S19 May 2021, 02:33
Re: Ken Gebhart obituaryAlan S20 May 2021, 00:02
Re: Naval Observatory website changeAlan S4 Jun 2021, 16:05
Re: A-5 Course and Distance ComputerAlan S2 Jul 2021, 15:17
Re: A-5 Course and Distance ComputerAlan S2 Jul 2021, 23:18
Re: A-5 Course and Distance ComputerAlan S3 Jul 2021, 23:23
Re: A-5 Course and Distance ComputerAlan S4 Jul 2021, 02:32
Re: A-5 Course and Distance ComputerAlan S4 Jul 2021, 02:39
Re: Found sextant at local curiosity shop...Alan S7 Jul 2021, 21:02
Re: Found sextant at local curiosity shop...Alan S9 Jul 2021, 21:59
Re: 27th Meeting of Researchers of Slide RulesAlan S17 Aug 2021, 02:21
Re: 27th Meeting of Researchers of Slide RulesAlan S17 Aug 2021, 04:02
Re: I couldn’t help myselfAlan S4 Oct 2021, 20:46
Re: I couldn’t help myselfAlan S4 Oct 2021, 20:51
Re: Calculator v. Slide Rule for Ex-Meridian CorrectionAlan S8 Oct 2021, 03:49
Re: Book available: Schereth's Lat Lon by the Noon SightAlan S12 Oct 2021, 02:24
Re: Calibrating New 24MP DSLR Canon Rebel for CNAlan S5 Nov 2021, 04:12
Re: Visiting San Francisco areaAlan S9 Dec 2021, 18:22
Re: Air Navigation, Local Hour Angle Type X-1 computerAlan S28 Dec 2021, 19:49
Sperry Gyrocompass MK 22Alejandro Purgue20 Aug 2021, 20:59
Re: Plot Sheet GeneratorAlex L.23 Mar 2021, 18:39
Re: Perihelion coming up in a few minutesAlexander Duytschaever11 Mar 2021, 18:11
Re: IntroductionAlexandre Eremenko13 Jan 2021, 19:35
DipAlexandre Eremenko5 Mar 2021, 17:23
Re: DipAlexandre Eremenko5 Mar 2021, 20:16
Re: DipAlexandre Eremenko8 Mar 2021, 00:33
Navigation by the MoonAlexandre Eremenko25 Mar 2021, 01:55
Re: Navigation by the MoonAlexandre Eremenko25 Mar 2021, 03:29
Re: Navigation by the MoonAlexandre Eremenko25 Mar 2021, 16:18
Re: Navigation by the MoonAlexandre Eremenko27 Mar 2021, 16:52
Re: Navigation by the MoonAlexandre Eremenko27 Mar 2021, 17:11
Re: Simex sextantAlexandre Eremenko26 Apr 2021, 14:41
Re: Dip from the deep blue originAlexandre Eremenko20 Jul 2021, 14:36
Re: StarFinder EpochAlexandre Eremenko27 Jul 2021, 18:12
Re: Three Oddball SextantsAlexandre Eremenko12 Sep 2021, 13:23
Re: The Three-body ProblemAlexandre Eremenko25 Oct 2021, 15:46
Re: The Three-body ProblemAlexandre Eremenko26 Oct 2021, 02:30
Re: The Three-body ProblemAlexandre Eremenko27 Oct 2021, 12:52
Lunar Distance Tables and Charts - Dec 2021Andrew Bauer15 Nov 2021, 17:31
Re: For which celestial bodies is it relevant to display the lunar distance?Andrew Bauer3 Dec 2021, 17:58
Re: My first posts are legally adults todayAndrew Bauer4 Dec 2021, 07:58
Re: For which celestial bodies is it relevant to display the lunar distance?Andrew Bauer4 Dec 2021, 08:10
Re: For which celestial bodies is it relevant to display the lunar distance?Andrew Bauer5 Dec 2021, 15:54
Re: Celnav.nl is no more? Pity!Andrew Bauer5 Dec 2021, 15:57
Re: Korean War – Naval EyewitnessAndrés Ruiz19 Feb 2021, 11:15
Étoile du Roy at Basque coastAndrés Ruiz13 Apr 2021, 11:38
Papers by George H. KaplanAndrés Ruiz27 Apr 2021, 09:03
Sarcasm and navigationAndrés Ruiz2 Dec 2021, 07:10
Google Maps "Do not use for navigation"?Andrés Ruiz16 Dec 2021, 14:18
Re: Willmann-Bell closed?Andy Howse10 Jan 2021, 12:53
Re: Celestial Navigation in the MoviesAndy Howse4 Feb 2021, 13:06
Re: Another surveying problemAndy Howse26 Feb 2021, 19:36
Re: Practical Haversine UseAndy Howse15 Nov 2021, 20:07
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte1 Sep 2021, 16:39
Re: Eldridge tide tables sun ephemerisAntoine Couëtte2 Sep 2021, 19:23
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte6 Sep 2021, 07:47
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte11 Sep 2021, 20:16
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte12 Sep 2021, 19:15
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte13 Sep 2021, 19:57
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte14 Sep 2021, 19:04
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte14 Sep 2021, 19:55
Re: Side error is not a real errorAntoine Couëtte28 Sep 2021, 09:58
Re: Side error is not a real errorAntoine Couëtte28 Sep 2021, 18:48
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte1 Oct 2021, 19:52
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte2 Oct 2021, 05:26
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte2 Oct 2021, 11:47
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte3 Oct 2021, 18:07
Re: Compare Methods: Lat/Lon Near NoonAntoine Couëtte6 Oct 2021, 02:31
Contrail and Aircraft distanceAntoine Couëtte11 Oct 2021, 00:57
Re: Contrail and Aircraft distanceAntoine Couëtte11 Oct 2021, 10:48
Aircraft position when you first hear itAntoine Couëtte13 Oct 2021, 12:38
Re: Contrail and Aircraft distanceAntoine Couëtte13 Oct 2021, 14:40
Re: Aircraft position when you first hear itAntoine Couëtte13 Oct 2021, 15:10
Re: Aircraft position when you first hear itAntoine Couëtte19 Oct 2021, 08:16
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte23 Oct 2021, 15:35
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte23 Oct 2021, 18:04
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte24 Oct 2021, 15:04
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte25 Oct 2021, 02:56
Re: A day's work in 1937 onboard the barque AlastorAntoine Couëtte26 Oct 2021, 07:07
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte27 Oct 2021, 19:02
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte29 Oct 2021, 19:11
Re: Moonrise over Connecticut, 19 October 2021Antoine Couëtte30 Oct 2021, 04:41
Re: Calculate new coordinates given bearing and distance?Antoine Couëtte1 Nov 2021, 18:13
Re:Moonrise-over-ConnecticutAntoine Couëtte2 Nov 2021, 01:05
Re:Moonrise-over-ConnecticutAntoine Couëtte3 Nov 2021, 11:27
Re:Moonrise-over-ConnecticutAntoine Couëtte5 Nov 2021, 08:15
Re:Moonrise-over-ConnecticutAntoine Couëtte5 Nov 2021, 13:06
Re:Moonrise-over-ConnecticutAntoine Couëtte5 Nov 2021, 15:19
Re: Average Sun SDAntoine Couëtte5 Nov 2021, 16:35
Re:Moonrise-over-ConnecticutAntoine Couëtte5 Nov 2021, 23:13
Re:Moonrise-over-ConnecticutAntoine Couëtte7 Nov 2021, 11:14
"Difficult" Celestial Navigation Multiple StarsAntoine Couëtte15 Nov 2021, 18:16
Re: Celnav.nl is no more? Pity!Antoine Couëtte2 Dec 2021, 18:39
Re: Morning starAntoine Couëtte14 Dec 2021, 11:13
Re: Reconditioned Link A-12 Sextant F.S.Art Leung3 May 2021, 18:19
Re: Do you recognize this?Art Leung18 May 2021, 13:00
Watch set to UT optionsArt Leung7 Jun 2021, 12:55
Bill Morris' MHR1 reproductionArt Leung11 Jun 2021, 23:58
Re: Bill Morris' MHR1 reproductionArt Leung15 Jun 2021, 20:01
Re: Evolution of the Flat BygraveArt Leung13 Jul 2021, 12:34
Outlook time zonesArt Leung9 Aug 2021, 13:31
Re: Outlook time zonesArt Leung11 Aug 2021, 15:14
Kollsman bubble sextant bubble repairArt Leung15 Sep 2021, 12:43
Re: Kollsman Periscopic Bubble AdjustArt Leung16 Sep 2021, 12:47
Re: Finding IC for A-12 bubble sextantsArt Leung6 Oct 2021, 13:43
Re: Finding IC for A-12 bubble sextantsArt Leung7 Oct 2021, 13:26
Re: Finding IC for A-12 bubble sextantsArt Leung8 Oct 2021, 19:28
Re: Finding IC for A-12 bubble sextantsArt Leung11 Oct 2021, 12:25
Re: Finding IC for A-12 bubble sextantsArt Leung11 Oct 2021, 12:33
Re: Finding IC for A-12 bubble sextantsArt Leung11 Oct 2021, 12:34
Re: The Three-body ProblemArt Leung25 Oct 2021, 11:32
Kollsman electronic averager powerArt Leung17 Nov 2021, 14:28
Re: Lindbergh-Weems Second-Setting Pilot's Watch -Updated PaperArt Leung17 Nov 2021, 14:38
Re: Kollsman electronic averager powerArt Leung18 Nov 2021, 14:29
Re: Kollsman electronic averager powerArt Leung19 Nov 2021, 15:34
Re: Kollsman electronic averager powerArt Leung19 Nov 2021, 15:37
Re: Lindbergh-Weems Second-Setting Pilot's Watch -Updated PaperArt Leung19 Nov 2021, 15:51
Re: Kollsman electronic averager powerArt Leung20 Nov 2021, 23:26
Re: Ex RNZAF navigator keen to learn marine sextant waysArt Leung3 Dec 2021, 14:06
Re: Kollsman Aircraft SextantsArt Leung3 Dec 2021, 15:24
Re: Ex RNZAF navigator keen to learn marine sextant waysArt Leung6 Dec 2021, 21:27
Re: Ex RNZAF navigator keen to learn marine sextant waysArt Leung6 Dec 2021, 21:51
Re: Ex RNZAF navigator keen to learn marine sextant waysArt Leung7 Dec 2021, 16:18
Re: Kollsman Aircraft SextantsArt Leung8 Dec 2021, 20:41
Re: Astron Version 2.2Barry Messer21 Dec 2021, 23:59
Re: Willmann-Bell closed?Bela Kovacs10 Jan 2021, 10:29
Universal Plotting Sheet and Weir diagramBela Kovacs22 May 2021, 14:04
Re: Universal Plotting Sheet and Weir diagramBela Kovacs23 May 2021, 22:19
Re: Universal Plotting Sheet and Weir diagramBela Kovacs24 May 2021, 10:05
Re: Universal Plotting Sheet and Weir diagramBela Kovacs25 May 2021, 10:58
Scientific calculators - statistics modeBela Kovacs30 Nov 2021, 15:10
Re: International star name pronunciationsBenjamin Lowings20 Jun 2021, 21:10
Re: New Soviet era sextant SNO-TBernard N11 May 2021, 12:26
Re: NY Times Article on GPSBill B24 Jan 2021, 23:59
Re: Sextant experimentBill B14 Jun 2021, 18:52
Re: Old Sextant - Charles HutchinsonBill Lionheart14 Jan 2021, 08:52
Re: What constitutes Round The World (RTW) ?Bill Lionheart31 Jan 2021, 15:50
Re: What constitutes Round The World (RTW) ?Bill Lionheart1 Feb 2021, 14:44
Circum nav solo with sextant and paper chartBill Lionheart2 Feb 2021, 08:28
Re: Circum nav solo with sextant and paper chartBill Lionheart2 Feb 2021, 17:37
RDFBill Lionheart7 Feb 2021, 20:43
Re: True North and PrecessionBill Lionheart16 Feb 2021, 09:59
Re: True North and PrecessionBill Lionheart17 Feb 2021, 08:42
Prob 1/4 of being in a cocked hatBill Lionheart20 Feb 2021, 22:14
Golden Globe Race -- how would you detect cheating?Bill Lionheart27 Apr 2021, 10:29
Re: Golden Globe Race -- how would you detect cheating?Bill Lionheart28 Apr 2021, 09:05
Francis Chichester's LogsBill Lionheart15 Oct 2021, 16:48
Re: Francis Chichester's LogsBill Lionheart16 Oct 2021, 09:26
Re: Francis Chichester's LogsBill Lionheart16 Oct 2021, 09:27
Re: Sextant calibration accessoryBill Morris27 Feb 2021, 22:35
Re: A10 bubble sextant bulb holderBill Morris8 Mar 2021, 23:06
Silvering mirrors with mercury-tin amalgamBill Morris20 Mar 2021, 02:31
Re: Silvering mirrors with mercury-tin amalgamBill Morris20 Mar 2021, 18:37
Re: AH: windproof shades materialBill Morris22 Mar 2021, 23:56
Re: Galilean eyepiece description?Bill Morris24 Apr 2021, 04:00
Re: Galilean eyepiece description?Bill Morris25 Apr 2021, 05:20
Re: Simex sextantBill Morris26 Apr 2021, 20:53
Re: Simex sextantBill Morris30 Apr 2021, 05:04
Re: Silvering mirrors with mercury-tin amalgamBill Morris7 May 2021, 00:36
Conversion of Mark IX bubble sextant to surface use.Bill Morris28 May 2021, 00:59
Re: International star name pronunciationsBill Morris22 Jun 2021, 04:30
Re: Finding IC for A-12 bubble sextantsBill Morris5 Oct 2021, 21:29
Re: Sextant, how to ID and tell ageBill Morris6 Oct 2021, 03:16
Re: Freiberger Yacht Sextant Case Mod.Bill Morris18 Oct 2021, 22:04
Re: How to put a mirror spring in place ?Bill Morris3 Nov 2021, 22:32
Re: Sextant frame design- Who won?Bill Morris6 Nov 2021, 06:55
Re: The Nautical Sextant book, was: Sextant frame design- Who won?Bill Morris7 Nov 2021, 23:43
Re: A10 sextant for saleBill Morris13 Dec 2021, 22:35
Re: Christmas week Quizzes - Answer to Muffins QuestionBill Ritchie4 Jan 2021, 10:45
Re: Excel AlmanacBill Ritchie7 Jan 2021, 11:32
Reflecting CircleBill Ritchie14 Jan 2021, 20:51
Re: GPS AntiSpoof and integrating sextants?Bill Ritchie23 Jan 2021, 10:28
Re: Non-navigational Star coordinatesBill Ritchie4 Mar 2021, 21:58
Re: Running down an Astro-Position LineBill Ritchie15 Mar 2021, 23:38
Re: Running down an Astro-Position LineBill Ritchie16 Mar 2021, 18:37
Re: Wind Velocity from Three DriftsBill Ritchie18 Apr 2021, 09:31
Re: Wind Velocity from Three DriftsBill Ritchie19 Apr 2021, 16:09
Bygrave Slide Rule EmulatorBill Ritchie14 May 2021, 17:16
Re: Bill Morris' MHR1 reproductionBill Ritchie12 Jun 2021, 22:16
Re: Bill Morris' MHR1 reproductionBill Ritchie13 Jun 2021, 21:56
Re: International star name pronunciationsBill Ritchie20 Jun 2021, 22:11
Re: Moon horns as compassBill Ritchie9 Jul 2021, 18:36
Re: Degree sign in WindowsBill Ritchie6 Aug 2021, 21:43
Re: Compare Methods: Lat/Lon Near NoonBill Ritchie2 Sep 2021, 21:13
Re: ADMIN: internet connection speeds and statusBill Ritchie6 Sep 2021, 22:16
Re: An instant value vs an integrated one?Bill Ritchie9 Oct 2021, 22:07
Re: An instant value vs an integrated one?Bill Ritchie12 Oct 2021, 21:29
Re: Moonrise over Connecticut, 19 October 2021Bill Ritchie21 Oct 2021, 18:01
Re: Astron 1.15 integration in my nav log.Bill Ritchie31 Oct 2021, 17:27
Re:Moonrise-over-ConnecticutBill Ritchie3 Nov 2021, 23:12
Re:Moonrise-over-ConnecticutBill Ritchie5 Nov 2021, 22:42
Re: Navigation Spreadsheets in 2022Bill Ritchie28 Nov 2021, 11:01
Re: Plath certificate: drop of solderBill Roberts3 Feb 2021, 05:56
Re: 1950s C Plath sextantBill Roberts15 Feb 2021, 16:53
Solar Eclipses in high latitudesBob Crawley12 Jan 2021, 09:43
What constitutes Round The World (RTW) ?Bob Crawley31 Jan 2021, 14:04
Re: What constitutes Round The World (RTW) ?Bob Crawley1 Feb 2021, 13:07
Sunrise on the Moon?Bob Crawley21 Feb 2021, 08:20
Excellent talk on the Apollo 11 guidance computerBob Crawley23 Apr 2021, 08:54
Jan Huygen van LinschotenBob Goethe21 Jan 2021, 19:11
AstrolabesBob Goethe25 Jan 2021, 17:10
Re: Calculate GHA Aries in your headBob Goethe3 Mar 2021, 23:00
Re: Calculate the declination of the Sun in your headBob Goethe3 Mar 2021, 23:08
Re: DipBob Goethe7 Mar 2021, 23:03
Location of VenusBob Goethe11 Mar 2021, 21:33
Re: Surface Mail from CanadaBob Goethe13 Mar 2021, 19:06
PlanispheresBob Goethe13 Mar 2021, 19:06
Re: Capt. Sumner's First LOPBob Goethe14 Mar 2021, 20:50
Re: Golden Globe Race -- how would you detect cheating?Bob Goethe27 Apr 2021, 22:11
Re: Navigational significance of just a curiosity?Bob Goethe27 May 2021, 00:07
June 24, 1178: Today in HistoryBob Goethe24 Jun 2021, 13:32
Re: An instant value vs an integrated one?Bob Goethe9 Oct 2021, 23:05
The Three-body ProblemBob Goethe25 Oct 2021, 01:56
Re: The Three-body ProblemBob Goethe25 Oct 2021, 16:59
Re: How to put a mirror spring in place ?Bob Goethe3 Nov 2021, 15:59
Sextant Issues for Atlanta's water supplyBob Goethe8 Nov 2021, 17:57
EoT Curve calculated by VBBob Goethe23 Nov 2021, 20:18
Re: EoT Curve calculated by VBBob Goethe24 Nov 2021, 04:12
Re: Bare essentialsBob Goethe27 Nov 2021, 15:46
Re: Ex RNZAF navigator keen to learn marine sextant waysBob Goethe3 Dec 2021, 07:40
Re: Ex RNZAF navigator keen to learn marine sextant waysBob Goethe3 Dec 2021, 08:51
Re: Introduction and set of HO 214Bob Peterson15 Jan 2021, 15:21
Set of Nautical AlmanacsBob Peterson18 May 2021, 13:56
Re: Ken Gebhart obituaryBob Peterson19 May 2021, 17:58
Re: ADMIN: internet connection speeds and statusBob Peterson7 Sep 2021, 14:31
Eye cup for my sextantBrandon Michael Morgan26 Jan 2021, 20:06
Re: Eye cup for my sextantBrandon Michael Morgan28 Jan 2021, 04:29
Re: Wind Velocity from Three DriftsBrian Walton6 Mar 2021, 11:26
Re: Wind Velocity from Three DriftsBrian Walton13 Mar 2021, 13:39
Re: Running down an Astro-Position LineBrian Walton15 Mar 2021, 21:24
Time Sight and Ex-Meridian by BygraveBrian Walton6 Apr 2021, 09:49
Re: Time Sight and Ex-Meridian by BygraveBrian Walton7 Apr 2021, 07:56
Re: Time Sight and Ex-Meridian by BygraveBrian Walton28 Apr 2021, 16:11
Re: Borrowed BygraveBrian Walton18 Jun 2021, 03:07
Re: Borrowed BygraveBrian Walton19 Jun 2021, 04:38
Re: Finding IC for A-12 bubble sextantsBrian Walton9 Oct 2021, 01:37
Re: A day's work in 1937 onboard the barque AlastorBrian Walton25 Oct 2021, 12:51
Re: A day's work in 1937 onboard the barque Alastor, revisitedBrian Walton5 Dec 2021, 10:34
Re: A day's work in 1937 onboard the barque Alastor, revisitedBrian Walton10 Dec 2021, 09:13
Re: A day's work in 1937 onboard the barque Alastor, revisitedBrian Walton12 Dec 2021, 12:01
Traditional WayfindingBrian Walton24 Dec 2021, 10:47
Re: Traditional WayfindingBrian Walton31 Dec 2021, 16:56
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureBruce Cutting1 Apr 2021, 19:04
Re: NASR question on large F valuesBruce Cutting23 May 2021, 18:03
Re: Sextant frame design- Who won?Bruce Cutting6 Nov 2021, 18:36
Re: The Nautical Sextant bookBruce Cutting8 Nov 2021, 19:13
Thomas Sumner & Probus (656 tons)Bruce J. Pennino18 Jan 2021, 18:09
Capt. Sumner's First LOPBruce J. Pennino14 Mar 2021, 19:02
Re: Capt. Sumner's First LOPBruce J. Pennino16 Mar 2021, 17:24
Astrolabe AuctionBruce J. Pennino28 Mar 2021, 01:55
Re: Uk dataBruce J. Pennino25 Jun 2021, 16:04
Re: New Soviet era sextant SNO-TBruno Meier11 May 2021, 19:09
Aeronautical Periscopic Bubble SextantCam Brien14 Jan 2021, 22:41
Re: Aeronautical Periscopic Bubble SextantCam Brien16 Jan 2021, 19:52
Moon AmplitudeCapt Bob Glover III14 Feb 2021, 17:21
Re: 1950s C Plath sextantCapt Bob Glover III15 Feb 2021, 12:42
Re: 1950s C Plath sextantCapt Bob Glover III15 Feb 2021, 21:57
Re: 1950s C Plath sextantCapt Bob Glover III16 Feb 2021, 21:43
Re: Moon AmplitudeCapt Bob Glover III16 Feb 2021, 21:45
Old Sextant - Charles HutchinsonCarl Main13 Jan 2021, 23:48
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 16:49
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 16:51
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 16:52
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 16:55
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 17:07
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan 2021, 23:46
1946 US Coast Guard SextantCarl Main29 Jan 2021, 23:55
Re: Degree sign in WindowsCarsten John7 Aug 2021, 08:26
Re: Degree sign in WindowsCarsten John8 Aug 2021, 15:38
Aries symbols experimentCarsten John9 Aug 2021, 18:54
Re: Navigation Symbols in UnicodeCarsten John10 Aug 2021, 09:07
Re: Obscure Nautical Almanac starCharles McElhill7 Jan 2021, 15:24
Re: Ken Gebhart obituaryCharles McElhill19 May 2021, 22:10
Re: ADMIN: internet connection speeds and statusCharles McElhill6 Sep 2021, 16:48
Re: What is a chronometer?Charles McElhill18 Sep 2021, 15:51
A sextant for Artemischirila vasile9 Sep 2021, 07:27
A12 bubble chamberChris Bennett14 Sep 2021, 18:23
NY Times Article on GPSChris Post24 Jan 2021, 15:36
Re: The Ancient Greek Antikythera MechanismChris Post13 Mar 2021, 16:29
Re: Help required with a sunclock experimentChris Post22 Jun 2021, 21:28
Re: ADMIN: internet connection speeds and statusChris Post7 Sep 2021, 14:37
Re: Stereographic Projection of the EclipticD Maracle15 Feb 2021, 17:45
Re: Morning starD Maracle14 Dec 2021, 14:53
Sextant, how to ID and tell ageDanny Fafard5 Oct 2021, 18:55
Davis MK15 light mod possible?Darcy Paul12 Apr 2021, 19:14
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Darcy Paul12 Jun 2021, 03:18
Re: Davis MK15 light mod possible?Darcy Paul27 Jun 2021, 00:47
Re: Davis MK15 light mod possible?Darcy Paul27 Jun 2021, 00:50
Perihelion coming up in a few minutesDave Walden2 Jan 2021, 13:31
Re: Perihelion coming up in a few minutesDave Walden2 Jan 2021, 14:47
Re: Perihelion coming up in a few minutesDave Walden2 Jan 2021, 23:57
Re: Excel AlmanacDave Walden7 Jan 2021, 15:28
Re: Circular slide rule type deviceDave Walden18 Jan 2021, 22:44
Re: Thomas Sumner & Probus (656 tons)Dave Walden19 Jan 2021, 17:08
Re: Soviet star globe with Latin inscriptionsDave Walden21 Jan 2021, 18:15
Re: CP-300/U USAF Star FinderDave Walden9 Feb 2021, 17:39
Re: CP-300/U USAF Star FinderDave Walden9 Feb 2021, 20:43
Re: On this CP-300\U, recently discussed.Dave Walden12 Feb 2021, 01:31
Re: 16 Astronomy eBooks for $18Dave Walden17 Feb 2021, 21:21
Re: IERS Message: New release of the IAU SOFA software libraryDave Walden25 Feb 2021, 13:39
Re: Non-navigational Star coordinatesDave Walden5 Mar 2021, 19:45
Re: Celesticomp V instructionsDave Walden9 Mar 2021, 12:13
Re: Celesticomp V and other pocket computersDave Walden10 Mar 2021, 19:59
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar 2021, 12:36
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar 2021, 12:41
Re: Silvering mirrors with mercury-tin amalgamDave Walden20 Mar 2021, 12:59
Re: Practice Problems for Tables Methods?Dave Walden2 Jun 2021, 19:51
Re: Naval Observatory website changeDave Walden4 Jun 2021, 04:54
Re: Naval Observatory website changeDave Walden5 Jun 2021, 01:55
Re: How many ways to define a day?Dave Walden16 Jun 2021, 20:20
Uk dataDave Walden25 Jun 2021, 13:53
Re: A-5 Course and Distance ComputerDave Walden29 Jun 2021, 10:31
Russian dataDave Walden30 Jun 2021, 20:11
Time for navigationDave Walden1 Jul 2021, 12:03
Re: A-5 Course and Distance ComputerDave Walden3 Jul 2021, 03:50
Re: An azimuth formula that works everywhere? Even on poles?Dave Walden22 Jul 2021, 12:28
Re: John Franklin lunar from 1818 and Mendoza y Rios methodDave Walden2 Aug 2021, 11:20
Tropical Storm HenriDave Walden22 Aug 2021, 20:21
Re: Three Oddball SextantsDave Walden11 Sep 2021, 22:18
Re: Compare Methods: Lat/Lon Near NoonDave Walden6 Oct 2021, 02:52
Re: An instant value vs an integrated one?Dave Walden8 Oct 2021, 21:16
Re: The Three-body ProblemDave Walden27 Oct 2021, 11:37
Re:Moonrise-over-ConnecticutDave Walden3 Nov 2021, 16:29
Re:Moonrise-over-ConnecticutDave Walden5 Nov 2021, 18:49
You could publish the USNO Nautical AlmanacDave Walden11 Nov 2021, 00:50
USNO birthdayDave Walden8 Dec 2021, 12:48
USNO updateDave Walden22 Dec 2021, 13:12
Re: Celesticomp V instructionsDavid Arenburg8 Mar 2021, 23:25
Re: Celesticomp V instructionsDavid Arenburg10 Mar 2021, 11:03
Re: Catch Australia while you canDavid C2 Jan 2021, 21:58
Afternoon SightDavid C10 Jan 2021, 03:10
Re: Afternoon SightDavid C10 Jan 2021, 21:12
Re: Old Sextant - Charles HutchinsonDavid C14 Jan 2021, 02:37
Re: Azimuth computation formula in Pub. 229David C17 Jan 2021, 03:03
Re: Azimuth computation formula in Pub. 229David C17 Jan 2021, 03:09
Re: Azimuth computation formula in Pub. 229David C17 Jan 2021, 03:52
Re: HO 208 vs Compact NA tables.David C26 Jan 2021, 21:11
Re: HO 208 vs Compact NA tables.David C26 Jan 2021, 21:57
What is a naut?David C2 Feb 2021, 01:39
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?David C19 Feb 2021, 19:40
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?David C19 Feb 2021, 20:39
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?David C19 Feb 2021, 22:11
Re: Bowditch editions: good and badDavid C20 Feb 2021, 03:57
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?David C20 Feb 2021, 21:03
Re: Bowditch editions: good and badDavid C20 Feb 2021, 21:30
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?David C20 Feb 2021, 21:57
Re: Wind Velocity from Three DriftsDavid C11 Mar 2021, 01:10
Re: Wind Velocity from Three DriftsDavid C11 Mar 2021, 01:19
Re: Surface Mail from CanadaDavid C14 Mar 2021, 03:45
Re: Running down an Astro-Position LineDavid C15 Mar 2021, 04:56
Re: Running down an Astro-Position LineDavid C15 Mar 2021, 21:33
Re: NY Times article on GPS vulnerabilitiesDavid C19 Mar 2021, 04:33
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDavid C3 Apr 2021, 21:12
Simex sextantDavid C26 Apr 2021, 05:14
Re: Simex sextantDavid C27 Apr 2021, 02:43
Re: Simex sextantDavid C27 Apr 2021, 03:21
Re: Golden Globe Race -- how would you detect cheating?David C27 Apr 2021, 18:58
Charles H Cotter's PhD ThesisDavid C28 Apr 2021, 06:46
Re: Charles H Cotter's PhD ThesisDavid C29 Apr 2021, 04:16
Re: Pub. 249 origins and historyDavid C10 May 2021, 07:37
Re: Pub. 249 origins and historyDavid C10 May 2021, 09:16
Re: Pub. 249 origins and historyDavid C10 May 2021, 22:33
Navigational significance of just a curiosity?David C26 May 2021, 22:58
Re: Navigational significance of just a curiosity?David C27 May 2021, 21:33
Re: Navigational significance of just a curiosity?David C28 May 2021, 04:46
Re: Results of the sunclock experimentDavid C4 Jun 2021, 22:14
Re: Heath Hezzanith?David C15 Jun 2021, 07:29
Re: Heath Hezzanith?David C17 Jun 2021, 05:50
Re: International star name pronunciationsDavid C20 Jun 2021, 22:03
Re: International star name pronunciationsDavid C20 Jun 2021, 22:15
Re: International star name pronunciationsDavid C20 Jun 2021, 22:47
International Aeradio Ltd Calculation ServceDavid C21 Jun 2021, 00:04
Re: SolsticeDavid C21 Jun 2021, 04:13
Re: SolsticeDavid C21 Jun 2021, 04:59
Re: SolsticeDavid C21 Jun 2021, 05:25
Re: SolsticeDavid C21 Jun 2021, 07:12
Re: Uk dataDavid C29 Jun 2021, 21:37
Re: A-5 Course and Distance ComputerDavid C4 Jul 2021, 04:36
Re: Selling an A-12 bubble sextantDavid C11 Jul 2021, 22:24
Re: ADMIN: NavList Operations ContributionsDavid C7 Aug 2021, 21:12
Re: Degree sign in WindowsDavid C8 Aug 2021, 23:42
Navigation Symbols in UnicodeDavid C10 Aug 2021, 00:06
Re: Navigation Symbols in UnicodeDavid C11 Aug 2021, 02:49
I think I saw NunkiDavid C18 Aug 2021, 07:39
Re: Interesting: Air Almanac HistoryDavid C22 Aug 2021, 22:34
Re: Tropical Storm HenriDavid C23 Aug 2021, 05:57
Re: $5 celestial navigation books at your libraryDavid C4 Sep 2021, 23:00
Re: $5 celestial navigation books at your libraryDavid C5 Sep 2021, 02:30
Re: ADMIN: internet connection speeds and statusDavid C6 Sep 2021, 20:01
Re: ADMIN: internet connection speeds and statusDavid C6 Sep 2021, 20:18
Re: $5 celestial navigation books at your libraryDavid C7 Sep 2021, 07:05
J S Letcher and LunarsDavid C8 Sep 2021, 23:09
Re: Mrs Chippy and a tale of two gravesDavid C27 Sep 2021, 02:03
Re: Time ballsDavid C3 Oct 2021, 21:01
Re: Francis Chichester's LogsDavid C16 Oct 2021, 02:15
Re: Francis Chichester's LogsDavid C16 Oct 2021, 02:30
Re: Venus in daylight in southern latitudesDavid C17 Oct 2021, 21:19
Re: Venus in daylight in southern latitudesDavid C18 Oct 2021, 21:13
Re: Venus in daylight in southern latitudesDavid C20 Oct 2021, 22:34
Re: Venus in daylight in southern latitudesDavid C21 Oct 2021, 08:04
Re: Venus in daylight in southern latitudesDavid C21 Oct 2021, 08:45
Re: The Three-body ProblemDavid C27 Oct 2021, 22:02
Re: The Three-body ProblemDavid C27 Oct 2021, 22:11
Re: HO 214 HistoryDavid C30 Oct 2021, 02:09
Re: HO 214 HistoryDavid C30 Oct 2021, 02:27
Re: HO 214 HistoryDavid C30 Oct 2021, 03:11
Re: HO 214 HistoryDavid C30 Oct 2021, 22:25
Re: HO 214 HistoryDavid C30 Oct 2021, 22:45
Re: Venus in daylight in southern latitudesDavid C8 Nov 2021, 06:23
Re: Where is the Prime Meridian?David C11 Dec 2021, 06:53
Re: Where is the Prime Meridian?David C11 Dec 2021, 07:45
A10 sextant for saleDavid C12 Dec 2021, 21:10
Re: A10 sextant for saleDavid C14 Dec 2021, 03:49
Re: Office Hours Ageton ClassicDavid Fleming11 Feb 2021, 20:31
Re: Calculate the declination of the Sun in your headDavid Fleming3 Mar 2021, 22:09
Re: DipDavid Fleming7 Mar 2021, 23:50
Re: An azimuth formula that works everywhere? Even on poles?David Fleming20 Jul 2021, 22:04
Re: ADMIN: internet connection speeds and statusDavid Fleming6 Sep 2021, 18:08
Cooke, Throughton & Simms T63 infoDavid Harrison26 Feb 2021, 13:18
Re: Negative leap second?David Iwancio6 Jan 2021, 07:39
Re: Negative leap second?David Iwancio6 Jan 2021, 19:14
Computing Lunar Comparing Distances by "Plane Sailing"David Iwancio7 Jan 2021, 12:18
Re: Willmann-Bell closed?David Iwancio10 Jan 2021, 02:43
Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio12 Jan 2021, 11:57
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio13 Jan 2021, 21:21
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio15 Jan 2021, 04:03
Question about LoP's and Intercepts on a Mercator ChartDavid Iwancio21 Jan 2021, 06:23
Re: Question about LoP's and Intercepts on a Mercator ChartDavid Iwancio23 Jan 2021, 09:56
Re: Moon AmplitudeDavid Iwancio14 Feb 2021, 22:48
Re: Surface Mail from CanadaDavid Iwancio16 Mar 2021, 07:04
2102-D, Crowding at High Declinations, WorkaroundDavid Iwancio17 Apr 2021, 07:34
Re: Air Force One sextant?David Iwancio21 May 2021, 14:23
Re: NASR question on large F valuesDavid Iwancio21 May 2021, 16:59
Re: NASR question on large F valuesDavid Iwancio3 Jun 2021, 09:30
Re: An azimuth formula that works everywhere? Even on poles?David Iwancio20 Jul 2021, 19:09
Re: Aircraft position when you first hear itDavid Iwancio13 Oct 2021, 14:27
A-5 Course and Distance ComputerDavid L Masters22 Jun 2021, 16:33
Re: A-5 Course and Distance ComputerDavid L Masters29 Jun 2021, 14:53
Re: A-5 Course and Distance ComputerDavid L Masters30 Jun 2021, 15:03
Re: Reeds versine formulasDavid McN12 Nov 2021, 18:51
Re: Reeds versine formulasDavid McN12 Nov 2021, 22:14
Bare essentialsDavid McN19 Nov 2021, 22:03
Re: Bare essentialsDavid McN20 Nov 2021, 20:09
Re: Bare essentialsDavid McN23 Nov 2021, 09:54
Re: Christmas week QuizzesDavid Pike1 Jan 2021, 09:26
Re: Christmas week Quizzes - Suggested solution to the external tangents to three circles problemDavid Pike2 Jan 2021, 09:07
Re: Christmas week Quizzes - Answer to Muffins QuestionDavid Pike2 Jan 2021, 09:34
Re: Christmas week Quizzes - Where's my bike + Final CommentsDavid Pike2 Jan 2021, 10:47
Re: Christmas week Quizzes - Suggested solution to the external tangents to three circles problemDavid Pike3 Jan 2021, 12:34
Re: Christmas week Quizzes - Answer to Muffins QuestionDavid Pike4 Jan 2021, 16:20
RIN Submarine Navigation and Ocean Sailing webinars are now on YouTube.David Pike7 Jan 2021, 15:02
An Evening with Map Projections - Free WebinarDavid Pike7 Jan 2021, 15:08
Re: Afternoon SightDavid Pike10 Jan 2021, 09:31
Free Downloadable Electronic Navigation GuideDavid Pike15 Jan 2021, 21:11
The Past, Present and Future of Nautical Information for Leisure SailorsDavid Pike16 Jan 2021, 18:35
Re: GPS AntiSpoof and integrating sextants?David Pike21 Jan 2021, 23:26
Re: GPS AntiSpoof and integrating sextants?David Pike22 Jan 2021, 09:45
Re: Excel AlmanacDavid Pike23 Jan 2021, 19:08
Two More free WebinarsDavid Pike23 Jan 2021, 19:37
Free Webinar - Why people get lost in buildingsDavid Pike2 Feb 2021, 16:53
Re: Celestial Navigation in the MoviesDavid Pike2 Feb 2021, 17:39
Re: What is a naut?David Pike2 Feb 2021, 17:56
Re: Plath certificate: drop of solderDavid Pike2 Feb 2021, 20:57
Re: Plath certificate: drop of solderDavid Pike5 Feb 2021, 16:34
Re: Plath certificate: drop of solderDavid Pike5 Feb 2021, 18:04
Re: RdfDavid Pike8 Feb 2021, 18:51
Re: RdfDavid Pike8 Feb 2021, 19:25
How Convincing is a Lunar Eclipse for Proving the Earth is a Sphere?David Pike10 Feb 2021, 17:11
Re: How Convincing is a Lunar Eclipse for Proving the Earth is a Sphere?David Pike11 Feb 2021, 16:30
Re: Sun Slow DayDavid Pike11 Feb 2021, 22:59
Re: Sun Slow DayDavid Pike11 Feb 2021, 23:20
Re: On this CP-300\U, recently discussed.David Pike13 Feb 2021, 08:51
Stereographic Projection of the EclipticDavid Pike14 Feb 2021, 19:59
Re: Stereographic Projection of the EclipticDavid Pike15 Feb 2021, 11:29
Re: Stereographic Projection of the EclipticDavid Pike15 Feb 2021, 19:12
Re: Sextant double reflection: angles halvedDavid Pike15 Feb 2021, 22:01
Re: Sextant double reflection: angles halvedDavid Pike15 Feb 2021, 22:44
Re: Sextant double reflection: angles halvedDavid Pike16 Feb 2021, 01:22
Re: Sextant double reflection: angles halvedDavid Pike16 Feb 2021, 17:49
Re: Sextant double reflection: angles halvedDavid Pike16 Feb 2021, 22:32
Re: 16 Astronomy eBooks for $18David Pike17 Feb 2021, 18:58
Korean War – Naval EyewitnessDavid Pike18 Feb 2021, 12:59
Resilient Position, Navigation And Timing - Training Seminar 1 Of 4 At 15.00Utc Today!!David Pike18 Feb 2021, 13:06
Re: 16 Astronomy eBooks for $18David Pike19 Feb 2021, 08:45
Moon’s Horns ConundrumDavid Pike19 Feb 2021, 09:21
Re: Moon’s Horns ConundrumDavid Pike19 Feb 2021, 16:43
Re: Online celestial navigation seminar by Margaret E. Schotte tomorrowDavid Pike23 Feb 2021, 16:37
Re: Moon’s Horns ConundrumDavid Pike23 Feb 2021, 16:58
Re: Surveying problemDavid Pike24 Feb 2021, 13:54
Re: Surveying problemDavid Pike24 Feb 2021, 20:44
Re: Surveying problemDavid Pike25 Feb 2021, 08:18
Re: Surveying problemDavid Pike25 Feb 2021, 09:07
Push out laser cut plywood models from ChinaDavid Pike25 Feb 2021, 20:33
Re: Push out laser cut plywood models from ChinaDavid Pike26 Feb 2021, 19:52
Re: Push out laser cut plywood models from ChinaDavid Pike27 Feb 2021, 17:46
Re: Push out laser cut plywood models from ChinaDavid Pike1 Mar 2021, 09:01
Re: Stereographic Projection of the EclipticDavid Pike1 Mar 2021, 11:15
Re: Push out laser cut plywood models from ChinaDavid Pike1 Mar 2021, 19:00
Re: Another surveying problemDavid Pike3 Mar 2021, 13:53
Re: Wind Velocity from Three DriftsDavid Pike3 Mar 2021, 16:06
Re: Wind Velocity from Three DriftsDavid Pike3 Mar 2021, 19:46
Calculate the declination of the Sun in your headDavid Pike3 Mar 2021, 20:29
Re: Wind Velocity from Three DriftsDavid Pike5 Mar 2021, 21:07
Re: Another surveying problemDavid Pike6 Mar 2021, 23:48
Re: Another surveying problemDavid Pike7 Mar 2021, 20:11
Re: Wind Velocity from Three DriftsDavid Pike8 Mar 2021, 09:40
Re: Wind Velocity from Three DriftsDavid Pike8 Mar 2021, 21:04
Re: Wind Velocity from Three DriftsDavid Pike9 Mar 2021, 16:54
Re: Wind Velocity from Three DriftsDavid Pike10 Mar 2021, 17:57
Re: Wind Velocity from Three DriftsDavid Pike11 Mar 2021, 20:28
Re: Wind Velocity from Three DriftsDavid Pike13 Mar 2021, 09:07
Running down an Astro-Position LineDavid Pike13 Mar 2021, 10:59
Surface Mail from CanadaDavid Pike13 Mar 2021, 11:35
Re: Wind Velocity from Three DriftsDavid Pike13 Mar 2021, 18:57
Navigating the RoyalsDavid Pike13 Mar 2021, 20:26
Re: Running down an Astro-Position LineDavid Pike14 Mar 2021, 18:51
Re: Running down an Astro-Position LineDavid Pike15 Mar 2021, 10:17
Re: Running down an Astro-Position LineDavid Pike16 Mar 2021, 20:19
Re: NY Times article on GPS vulnerabilitiesDavid Pike18 Mar 2021, 21:20
Re: Moon's horns point North/SouthDavid Pike22 Mar 2021, 20:33
Royal Navy Revives Days Of Sail With Training On Tall ShipDavid Pike23 Mar 2021, 10:45
Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike23 Mar 2021, 11:14
Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike23 Mar 2021, 11:42
Re: Plot Sheet GeneratorDavid Pike24 Mar 2021, 21:23
Re: Navigation by the MoonDavid Pike25 Mar 2021, 20:32
Re: Free RIN Webinar: How the Aircraft Carriers Pilot in and out of PortsmouthDavid Pike26 Mar 2021, 19:39
Re: Navigation by the MoonDavid Pike27 Mar 2021, 21:43
Suez Canal – Great NewsDavid Pike29 Mar 2021, 18:18
Re: Running down an Astro-Position LineDavid Pike29 Mar 2021, 18:43
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDavid Pike1 Apr 2021, 19:16
Re: Matthew Flinders ChartsDavid Pike4 Apr 2021, 08:07
Re: Matthew Flinders ChartsDavid Pike4 Apr 2021, 08:29
Royal Institute of Navigation Free Online SeminarDavid Pike5 Apr 2021, 11:40
Re: Matthew Flinders ChartsDavid Pike5 Apr 2021, 18:20
Re: Matthew Flinders ChartsDavid Pike7 Apr 2021, 06:59
Re: A Sun-compass landfall?David Pike9 Apr 2021, 08:28
Re: A Sun-compass landfall?David Pike10 Apr 2021, 13:25
Re: A Sun-compass landfall?David Pike11 Apr 2021, 16:44
Re: A Sun-compass landfall?David Pike11 Apr 2021, 18:22
Re: A Sun-compass landfall?David Pike12 Apr 2021, 07:56
Re: A Sun-compass landfall?David Pike12 Apr 2021, 08:02
Re: A Diy E6-B?David Pike13 Apr 2021, 08:28
Re: A Diy E6-B?David Pike13 Apr 2021, 17:57
Re: Vulcan airborne sight reduction form?David Pike13 Apr 2021, 18:00
Re: Vulcan airborne sight reduction form?David Pike14 Apr 2021, 17:01
Re: Vulcan airborne sight reduction form?David Pike14 Apr 2021, 21:21
Re: A Diy E6-B?David Pike15 Apr 2021, 07:47
Re: A Diy E6-B?David Pike16 Apr 2021, 07:00
Re: A Sun-compass landfall?David Pike16 Apr 2021, 07:21
Unlike in ‘Lord of the Flies’David Pike16 Apr 2021, 07:36
Re: A Diy E6-B?David Pike16 Apr 2021, 14:56
Re: A Diy E6-B?David Pike16 Apr 2021, 15:10
Re: A Diy E6-B?David Pike16 Apr 2021, 15:17
Re: Another "Office Hours" session, 4pm Eastern (2000 UT)David Pike16 Apr 2021, 15:47
Re: Vulcan airborne sight reduction form?David Pike20 Apr 2021, 18:36
Re: Simex sextantDavid Pike26 Apr 2021, 19:47
Re: Golden Globe Race -- how would you detect cheating?David Pike27 Apr 2021, 17:15
Re: DIY star-globe: advise neededDavid Pike3 May 2021, 10:48
Re: DIY star-globe: advise neededDavid Pike3 May 2021, 20:44
Re: DIY star-globe: advise neededDavid Pike4 May 2021, 10:14
Re: DIY star-globe: advise neededDavid Pike7 May 2021, 10:37
Re: 16 Astronomy eBooks for $18David Pike8 May 2021, 08:54
Online "Office Hours" todayDavid Pike9 May 2021, 11:59
Re: Pub. 249 origins and historyDavid Pike10 May 2021, 10:00
Re: Pub. 249 origins and historyDavid Pike11 May 2021, 09:15
Re: Pub. 249 origins and historyDavid Pike11 May 2021, 09:20
Re: MapQuest and Google Maps geographic coordinatesDavid Pike12 May 2021, 20:08
Re: NavList website and cookiesDavid Pike15 May 2021, 06:46
Re: Do you recognize this?David Pike17 May 2021, 08:35
Re: Do you recognize this?David Pike17 May 2021, 14:55
Re: Air Force One sextant?David Pike21 May 2021, 08:51
Re: Universal Plotting Sheet and Weir diagramDavid Pike24 May 2021, 08:40
Re: NASR question on large F valuesDavid Pike24 May 2021, 08:54
CogNav Webinar Series: Star Wars CitiesDavid Pike24 May 2021, 10:04
Re: Three GPS data comparison: All different. Huh?David Pike25 May 2021, 15:59
London hospital employs internal navigationDavid Pike25 May 2021, 16:05
Re: Practice Problems for Tables Methods?David Pike2 Jun 2021, 14:28
Re: Help required with a sunclock experimentDavid Pike2 Jun 2021, 16:57
Re: Problem Practice (group project)David Pike3 Jun 2021, 09:49
Re: Problem Practice (group project)David Pike3 Jun 2021, 15:20
Re: Results of the sunclock experimentDavid Pike4 Jun 2021, 18:19
Re: Results of the sunclock experimentDavid Pike5 Jun 2021, 07:56
Re: Results of the sunclock experimentDavid Pike6 Jun 2021, 08:41
Re: Relativistic interstellar navigation (or how to avoid getting Lost in Space!)David Pike6 Jun 2021, 11:36
Re: Results of the sunclock experimentDavid Pike6 Jun 2021, 11:45
Re: Kollsman periscopic sextant mountDavid Pike10 Jun 2021, 21:12
Re: Kollsman periscopic sextant mountDavid Pike11 Jun 2021, 08:45
Re: Borrowed BygraveDavid Pike16 Jun 2021, 06:30
Re: Borrowed BygraveDavid Pike16 Jun 2021, 20:27
'Great Dimming' of Betelgeuse solvedDavid Pike16 Jun 2021, 20:41
Re: 'Great Dimming' of Betelgeuse solvedDavid Pike17 Jun 2021, 14:31
Re: Borrowed BygraveDavid Pike18 Jun 2021, 09:47
Re: My Kollsman sextant.David Pike18 Jun 2021, 20:50
Re: My Kollsman sextant.David Pike19 Jun 2021, 07:37
Re: International star name pronunciationsDavid Pike20 Jun 2021, 20:26
Re: International star name pronunciationsDavid Pike20 Jun 2021, 23:27
Re: Altitude correction using Artificial Horizon?David Pike21 Jun 2021, 17:08
Re: International star name pronunciationsDavid Pike22 Jun 2021, 08:02
Re: Mechanical Maneuvering Board instructionsDavid Pike22 Jun 2021, 16:48
Re: A-5 Course and Distance ComputerDavid Pike28 Jun 2021, 18:16
Re: A-5 Course and Distance ComputerDavid Pike29 Jun 2021, 10:48
Re: A-5 Course and Distance ComputerDavid Pike29 Jun 2021, 12:06
Re: Uk dataDavid Pike30 Jun 2021, 07:41
Re: A-5 Course and Distance ComputerDavid Pike30 Jun 2021, 16:59
Re: A-5 Course and Distance ComputerDavid Pike1 Jul 2021, 13:24
Re: A-5 Course and Distance ComputerDavid Pike2 Jul 2021, 08:59
Re: A-5 Course and Distance ComputerDavid Pike3 Jul 2021, 06:48
Re: A-5 Course and Distance ComputerDavid Pike4 Jul 2021, 20:39
Re: Recording sextant (maybe octant)?David Pike9 Jul 2021, 16:59
Re: Recording sextant (maybe octant)?David Pike10 Jul 2021, 15:19
Re: Selling an A-12 bubble sextantDavid Pike11 Jul 2021, 17:24
An interesting sundialDavid Pike17 Jul 2021, 13:19
An amazing reflectionDavid Pike17 Jul 2021, 14:31
Re: Dip from the deep blue originDavid Pike20 Jul 2021, 14:08
Re: An azimuth formula that works everywhere? Even on poles?David Pike20 Jul 2021, 17:54
Re: An azimuth formula that works everywhere? Even on poles?David Pike20 Jul 2021, 20:18
Re: An azimuth formula that works everywhere? Even on poles?David Pike22 Jul 2021, 15:07
Re: An azimuth formula that works everywhere? Even on poles?David Pike23 Jul 2021, 07:50
Re: An azimuth formula that works everywhere? Even on poles?David Pike23 Jul 2021, 08:35
Re: An azimuth formula that works everywhere? Even on poles?David Pike23 Jul 2021, 20:48
Re: An azimuth formula that works everywhere? Even on poles?David Pike24 Jul 2021, 14:14
Re: An azimuth formula that works everywhere? Even on poles?David Pike24 Jul 2021, 20:15
Re: Bubble size and accuracyDavid Pike29 Jul 2021, 15:52
Re: Degree sign in WindowsDavid Pike8 Aug 2021, 21:45
Unexpected star gazing reminder.David Pike8 Aug 2021, 21:59
Re: Navigation Symbols in UnicodeDavid Pike10 Aug 2021, 08:15
Dummy Batteries for an A12David Pike11 Aug 2021, 19:09
Re: Dummy Batteries for an A12David Pike15 Aug 2021, 15:41
Re: Link A-12 Sextant For SaleDavid Pike9 Sep 2021, 18:42
Re: Link A-12 Sextant For SaleDavid Pike9 Sep 2021, 19:16
Re: Three Oddball SextantsDavid Pike12 Sep 2021, 08:36
Re: Three Oddball SextantsDavid Pike13 Sep 2021, 18:36
Re: A12 bubble chamberDavid Pike14 Sep 2021, 19:32
Re: You need these for your study!David Pike20 Sep 2021, 06:54
It's that time againDavid Pike22 Sep 2021, 07:20
Re: Time ballsDavid Pike4 Oct 2021, 07:26
Re: Finding IC for A-12 bubble sextantsDavid Pike5 Oct 2021, 21:17
Re: Finding IC for A-12 bubble sextantsDavid Pike6 Oct 2021, 15:05
Re: Finding IC for A-12 bubble sextantsDavid Pike6 Oct 2021, 16:45
Re: Finding IC for A-12 bubble sextantsDavid Pike7 Oct 2021, 23:39
Re: Finding IC for A-12 bubble sextantsDavid Pike8 Oct 2021, 21:48
Re: Finding IC for A-12 bubble sextantsDavid Pike12 Oct 2021, 19:26
Re: Contrail and Aircraft distanceDavid Pike12 Oct 2021, 19:38
Re: Moonrise over Connecticut, 19 October 2021David Pike31 Oct 2021, 20:13
Star Constellation Jigsaw PuzzleDavid Pike31 Oct 2021, 21:02
Re: Calculate new coordinates given bearing and distance?David Pike2 Nov 2021, 10:14
Re: Calculate new coordinates given bearing and distance?David Pike3 Nov 2021, 14:49
Re: DR with traverse tablesDavid Pike9 Nov 2021, 09:59
An interesting series of Navigation Books by the same authorDavid Pike12 Nov 2021, 16:51
Haversine ZD formula to Cosine ZD formula in easy stagesDavid Pike12 Nov 2021, 20:41
Practical Haversine UseDavid Pike12 Nov 2021, 21:06
Re: Practical Haversine UseDavid Pike13 Nov 2021, 20:59
Re: An interesting series of Navigation Books by the same authorDavid Pike15 Nov 2021, 23:28
Noon Longitude by Equal AltitudesDavid Pike22 Nov 2021, 20:00
Re: Noon Longitude by Equal AltitudesDavid Pike23 Nov 2021, 21:00
Re: Noon Longitude by Equal AltitudesDavid Pike25 Nov 2021, 09:40
Re: Noon Longitude by Equal AltitudesDavid Pike25 Nov 2021, 16:13
Re: An interesting series of Navigation Books by the same authorDavid Pike25 Nov 2021, 16:34
Re: Noon Longitude by Equal AltitudesDavid Pike29 Nov 2021, 21:16
Re: Kollsman Aircraft SextantsDavid Pike3 Dec 2021, 16:05
Re: Ex RNZAF navigator keen to learn marine sextant waysDavid Pike3 Dec 2021, 18:08
Re: Kollsman Aircraft SextantsDavid Pike4 Dec 2021, 09:09
Re: Ex RNZAF navigator keen to learn marine sextant waysDavid Pike4 Dec 2021, 09:40
Re: International Date LineDavid Pike5 Dec 2021, 16:40
Where lies the hole in the Polar Cusp?David Pike7 Dec 2021, 11:13
Re: Kollsman Aircraft SextantsDavid Pike7 Dec 2021, 16:37
Verifying the Vexatious 'v' CorrectionDavid Pike8 Dec 2021, 14:30
Re: Kollsman Aircraft SextantsDavid Pike9 Dec 2021, 00:02
Re: Kollsman Aircraft SextantsDavid Pike9 Dec 2021, 09:59
Mary, Mary, quite contrary how does your twilight glow?David Pike10 Dec 2021, 18:54
Re: Kollsman Aircraft SextantsDavid Pike10 Dec 2021, 20:11
Re: Where is the Prime Meridian?David Pike10 Dec 2021, 21:40
Re: Where is the Prime Meridian?David Pike10 Dec 2021, 23:19
Re: Where is the Prime Meridian?David Pike11 Dec 2021, 17:17
Re: Where is the Prime Meridian?David Pike11 Dec 2021, 22:31
Re: A10 sextant for saleDavid Pike14 Dec 2021, 17:29
Re: Latitude and longitude by birdfootDavid Pike20 Dec 2021, 12:16
Re: Latitude and longitude by birdfootDavid Pike20 Dec 2021, 12:54
Re: Jack London: author and navigatorDavid Pike20 Dec 2021, 14:11
Re: Latitude and longitude by birdfootDavid Pike20 Dec 2021, 15:58
Re: Jack London: author and navigatorDavid Pike20 Dec 2021, 19:16
Re: A day's work in 1937 onboard the barque Alastor, revisitedDavid Pike20 Dec 2021, 20:04
Re: Chilean author: future of celestialDavid Pike21 Dec 2021, 20:56
Re: Jack London: author and navigatorDavid Pike21 Dec 2021, 21:29
Re: Latitude and longitude by birdfootDavid Pike22 Dec 2021, 11:54
Re: Latitude and longitude by birdfootDavid Pike22 Dec 2021, 21:01
Re: Latitude and longitude by birdfootDavid Pike23 Dec 2021, 16:58
Re: Latitude and longitude by birdfootDavid Pike23 Dec 2021, 20:54
Great circle crossing the Equator on a Mercator's Chart?David Pike23 Dec 2021, 21:54
Re: Great circle crossing the Equator on a Mercator's Chart?David Pike24 Dec 2021, 11:07
Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike24 Dec 2021, 11:10
Re: Traditional WayfindingDavid Pike24 Dec 2021, 14:36
Re: Traditional WayfindingDavid Pike24 Dec 2021, 15:35
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike24 Dec 2021, 22:27
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike27 Dec 2021, 14:19
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike27 Dec 2021, 23:32
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike28 Dec 2021, 22:31
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike28 Dec 2021, 23:28
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike28 Dec 2021, 23:47
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDavid Pike29 Dec 2021, 19:53
Re: Traditional WayfindingDavid Pike31 Dec 2021, 21:18
Re: HO 249 Volume 1 Selected Stars Epoch 2000Dominique Prinet9 Aug 2021, 16:42
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon E. Bray2 Apr 2021, 20:43
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon Seltzer2 Apr 2021, 16:08
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDon Seltzer3 Apr 2021, 20:09
Re: Air Force One sextant?Don Seltzer20 May 2021, 00:19
Re: Air Force One sextant?Don Seltzer3 Sep 2021, 01:45
Re: Air Force One sextant?Don Seltzer3 Sep 2021, 18:24
Re: Air Force One sextant? [Spoiler!]Don Seltzer4 Sep 2021, 01:53
Re: Calculate new coordinates given bearing and distance?Don Seltzer5 Nov 2021, 20:29
Re: Calculate new coordinates given bearing and distance?Don Seltzer6 Nov 2021, 18:29
Re: NY Times Article on GPSDoug Faunt25 Jan 2021, 00:16
Re: About the Waylosing: my own experience.Doug Faunt3 Feb 2021, 17:51
Re: Telemeter/QuadrantDoug Faunt29 Mar 2021, 01:13
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDoug Faunt2 Apr 2021, 16:14
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDoug Faunt2 Apr 2021, 19:13
Do you recognize this?Doug Faunt17 May 2021, 01:38
Re: Do you recognize this?Doug Faunt17 May 2021, 14:10
Re: Do you recognize this?Doug Faunt17 May 2021, 14:58
Re: Do you recognize this?Doug Faunt17 May 2021, 15:10
Re: Do you recognize this?Doug Faunt17 May 2021, 22:08
Altitude with artificial hirizonDoug Faunt21 May 2021, 14:28
Re: Altitude with artificial horizonDoug Faunt21 May 2021, 18:54
My Kollsman sextant.Doug Faunt18 Jun 2021, 17:32
Day vs night map coverageDoug Faunt15 Jul 2021, 01:37
Fwd: Announcement of new update American Practical Navigator Pub. 9Doug Faunt15 Jul 2021, 17:00
Interesting: Air Almanac HistoryDoug Faunt22 Aug 2021, 17:28
Re: $5 celestial navigation books at your libraryDoug Faunt5 Sep 2021, 00:53
Re: $5 celestial navigation books at your libraryDoug Faunt5 Sep 2021, 15:19
Re: ADMIN: internet connection speeds and statusDoug Faunt7 Sep 2021, 15:53
Re: Finding IC for A-12 bubble sextantsDoug Faunt6 Oct 2021, 19:53
Book available: Schereth's Lat Lon by the Noon SightDoug Faunt12 Oct 2021, 00:08
Re: Book available: Schereth's Lat Lon by the Noon SightDoug Faunt13 Oct 2021, 02:33
Re: HO 214 HistoryDoug Faunt30 Oct 2021, 20:18
Re: Bare essentialsDoug Faunt23 Nov 2021, 15:17
Re: Bare essentialsDoug Faunt24 Nov 2021, 16:05
Re: Bare essentialsDoug Faunt24 Nov 2021, 18:10
Re: Visiting San Francisco areaDoug Faunt10 Dec 2021, 01:26
Re: Jack London: author and navigatorDoug Faunt20 Dec 2021, 16:24
Re: Great circle crossing the Equator on a Mercator's Chart?Doug Faunt23 Dec 2021, 23:45
Re: Air Navigation Began With Concrete Arrows, by Robert NovellDoug Faunt31 Dec 2021, 15:45
Re: Internation Date LineDoug Faunt31 Dec 2021, 19:08
Re: Bermuda to St Helena on a North Atlantic Mercator ChartDoug Faunt31 Dec 2021, 22:00
Re: ADMIN: internet connection speeds and statusDoug MacPherson6 Sep 2021, 20:03
Longitude by star clockDuane Smith19 Aug 2021, 00:31
Re: Longitude by star clockDuane Smith28 Aug 2021, 19:52
Re: Bowditch 2019 SucksDustin Baenen19 Feb 2021, 16:39
Re: Cel Nav SimulatorDustin Baenen22 Feb 2021, 19:39
Re: Cel Nav SimulatorDustin Baenen22 Feb 2021, 23:20
Re: Push out laser cut plywood models from ChinaDustin Baenen26 Feb 2021, 16:59
Re: The Where's Amelia Earhart drama continuesDustin Baenen4 Mar 2021, 22:46
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Dustin Baenen31 Mar 2021, 16:42
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Dustin Baenen31 Mar 2021, 20:40
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureDustin Baenen2 Apr 2021, 15:59
Re: Uk dataDustin Baenen30 Jun 2021, 14:18
"GPS Anti Spoof" app for Sextant CalibrationDustin Baenen12 Jul 2021, 15:41
Re: Dummy Batteries for an A12Dustin Baenen17 Aug 2021, 20:17
Re: A series of articles appearing in Ocean NavigatorEd Hlywa4 Apr 2021, 00:43
Re: You need these for your study!Ed Hlywa19 Sep 2021, 01:50
Moon Phases 2021 Including Libration and Position AngleEd Popko12 Jan 2021, 18:54
Re: CP-300/U USAF Star FinderEd Popko23 Jan 2021, 12:21
Polhemus Celestial Computer and Coriolis CorrectionEd Popko24 Jan 2021, 00:09
Re: Polhemus Celestial Computer and Coriolis CorrectionEd Popko24 Jan 2021, 10:43
Re: Polhemus Celestial Computer and Coriolis CorrectionEd Popko25 Jan 2021, 16:38
Re: AstrolabesEd Popko26 Jan 2021, 12:46
Sun's Blue and Golden HoursEd Popko15 Feb 2021, 13:38
Re: Sun's Blue and Golden HoursEd Popko16 Feb 2021, 15:28
The Where's Amelia Earhart drama continuesEd Popko4 Mar 2021, 14:17
Re: DIY Starfinder - a lockdown projectEd Popko4 Mar 2021, 22:42
Re: Wind Velocity from Three DriftsEd Popko9 Mar 2021, 12:03
Re: Wind Velocity from Three DriftsEd Popko11 Mar 2021, 23:59
The Ancient Greek Antikythera MechanismEd Popko13 Mar 2021, 13:48
Re: The Ancient Greek Antikythera MechanismEd Popko13 Mar 2021, 21:23
Backpackers discover the NocturnalEd Popko3 Apr 2021, 22:21
HarvardX offers free online course "PredictionX: Lost Without Longitude"Ed Popko30 Apr 2021, 16:38
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Ed Popko1 May 2021, 18:18
Re: HarvardX offers free online course "PredictionX: Lost Without Longitude"Ed Popko3 May 2021, 11:20
Re: Eclipse FixEd Popko5 Jun 2021, 19:42
Re: Sunclock apparatusEd Popko12 Jun 2021, 12:56
Re: Selling an A-12 bubble sextantEd Popko11 Jul 2021, 17:27
Re: J S Letcher and LunarsEd Popko9 Sep 2021, 14:29
Re: J S Letcher and LunarsEd Popko9 Sep 2021, 15:15
Re: Link A-12 Sextant For SaleEd Popko9 Sep 2021, 15:17
Re: Link A-12 Sextant For SaleEd Popko9 Sep 2021, 19:27
Status of USNO's Celestial Navigation Data web siteEd Popko25 Sep 2021, 14:38
Re: Compare Methods: Lat/Lon Near NoonEd Popko1 Oct 2021, 15:36
Re: Compare Methods: Lat/Lon Near NoonEd Popko1 Oct 2021, 22:01
Re: Compare Methods: Lat/Lon Near NoonEd Popko1 Oct 2021, 22:13
Re: Compare Methods: Lat/Lon Near NoonEd Popko2 Oct 2021, 14:31
Finding IC for A-12 bubble sextantsEd Popko5 Oct 2021, 13:43
Re: Finding IC for A-12 bubble sextantsEd Popko5 Oct 2021, 22:27
Re: Finding IC for A-12 bubble sextantsEd Popko5 Oct 2021, 22:29
Re: Finding IC for A-12 bubble sextantsEd Popko6 Oct 2021, 10:41
Re: Finding IC for A-12 bubble sextantsEd Popko6 Oct 2021, 15:59
Re: Finding IC for A-12 bubble sextantsEd Popko9 Oct 2021, 17:31
Re: Finding IC for A-12 bubble sextantsEd Popko10 Oct 2021, 16:54
Re: Finding IC for A-12 bubble sextantsEd Popko11 Oct 2021, 14:40
Re: Finding IC for A-12 bubble sextantsEd Popko13 Oct 2021, 13:39
Re: A day's work in 1937 onboard the barque AlastorEd Popko23 Oct 2021, 22:25
Re: Star Constellation Jigsaw PuzzleEd Popko31 Oct 2021, 23:40
Re: Calculate new coordinates given bearing and distance?Ed Popko5 Nov 2021, 12:24
Re: The Bajo "Sea Nomads" and the starsEd Popko5 Nov 2021, 21:23
Re: Calculate new coordinates given bearing and distance?Ed Popko6 Nov 2021, 12:42
Re: Calculate new coordinates given bearing and distance?Ed Popko9 Nov 2021, 20:21
Lindbergh-Weems Second-Setting Pilot ’s Watch - Updated PaperEd Popko12 Nov 2021, 22:11
Re: Lindbergh-Weems Second-Setting Pilot's Watch -Updated PaperEd Popko17 Nov 2021, 21:14
Remembering Don TreworgyEd Popko23 Nov 2021, 14:42
Re: EoT Curve calculated by VBEd Popko23 Nov 2021, 23:28
Re: A10 sextant for saleEd Popko13 Dec 2021, 21:09
Re: Traditional WayfindingEd Popko24 Dec 2021, 13:36
Re: Air Navigation, Local Hour Angle Type X-1 computerEd Popko30 Dec 2021, 13:43
Air Navigation Began With Concrete Arrows, by Robert NovellEd Popko31 Dec 2021, 14:26
Re: Bermuda to St Helena on a North Atlantic Mercator ChartEd Popko31 Dec 2021, 15:29
Artificial HorizonEnrique Petero19 Jun 2021, 08:36
Re: Altitude correction using Artificial Horizon?Enrique Petero21 Jun 2021, 08:08
Re: Cel Nav SimulatorEric van der Veen22 Mar 2021, 23:22
Re: Cel Nav SimulatorEric van der Veen28 Mar 2021, 16:06
Vulcan airborne sight reduction form?Eric van der Veen13 Apr 2021, 09:58
Re: Vulcan airborne sight reduction form?Eric van der Veen13 Apr 2021, 21:40
Re: Vulcan airborne sight reduction form?Eric van der Veen14 Apr 2021, 19:35
Re: Vulcan airborne sight reduction form?Eric van der Veen17 Apr 2021, 16:08
Re: Vulcan airborne sight reduction form?Eric van der Veen20 Apr 2021, 20:24
Re: Fulford Estate Collection - Online Auction Apr22-25Eric van der Veen22 Apr 2021, 10:25
Airborne CelNav demo Flight Simulator - the Earhart Howland flightEric van der Veen2 Jul 2021, 05:53
Re: Airborne CelNav demo Flight Simulator - the Earhart Howland flightEric van der Veen2 Jul 2021, 12:25
Re: Guy Murchie?Eric van der Veen5 Jul 2021, 07:26
Re: Recording sextant (maybe octant)?Eric van der Veen9 Jul 2021, 08:45
Re: MS Flight Simulator and a nova in Corona BorealisEric van der Veen4 Oct 2021, 20:06
Re: Working Aircraft Bubble Sextants For SaleEric van der Veen5 Nov 2021, 18:14
Re: Traditional navigation by slide ruleFrancis Upchurch15 Jan 2021, 16:56
Re: Bill Morris' MHR1 reproductionFrancis Upchurch13 Jun 2021, 03:02
Re: Bill Morris' MHR1 reproductionFrancis Upchurch13 Jun 2021, 06:37
Re: Borrowed BygraveFrancis Upchurch16 Jun 2021, 04:00
Re: Borrowed BygraveFrancis Upchurch16 Jun 2021, 14:41
Re: I couldn’t help myselfFrancis Upchurch4 Oct 2021, 17:59
Re: I couldn’t help myselfFrancis Upchurch5 Oct 2021, 03:12
Re: Obscure Nautical Almanac starFrank Reed1 Jan 2021, 15:09
Online Meeting / Office Hours todayFrank Reed1 Jan 2021, 15:16
Re: Online Meeting / Office Hours todayFrank Reed1 Jan 2021, 16:33
NavList message volumeFrank Reed2 Jan 2021, 00:00
Re: Perihelion coming up in a few minutesFrank Reed2 Jan 2021, 15:07
Re: Obscure Nautical Almanac starFrank Reed2 Jan 2021, 15:41
Re: Obscure Nautical Almanac starFrank Reed3 Jan 2021, 04:29
Re: Online Meeting / Office Hours todayFrank Reed3 Jan 2021, 17:00
Re: Obscure Nautical Almanac starFrank Reed3 Jan 2021, 18:27
Re: Obscure Nautical Almanac starFrank Reed3 Jan 2021, 18:43
Re: Obscure Nautical Almanac starFrank Reed3 Jan 2021, 19:16
Royal Observatory workshopFrank Reed4 Jan 2021, 17:12
Re: Negative leap second?Frank Reed5 Jan 2021, 20:29
Re: Obscure Nautical Almanac starFrank Reed7 Jan 2021, 05:23
Bridge sextantsFrank Reed7 Jan 2021, 22:47
Online meeting todayFrank Reed8 Jan 2021, 15:40
Re: Willmann-Bell closed?Frank Reed9 Jan 2021, 23:39
Re: Willmann-Bell closed?Frank Reed10 Jan 2021, 01:03
Re: An Evening with Map Projections - Free WebinarFrank Reed10 Jan 2021, 18:51
Re: Online meeting todayFrank Reed10 Jan 2021, 20:30
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacFrank Reed12 Jan 2021, 17:06
Re: Moon Phases 2021 Including Libration and Position AngleFrank Reed13 Jan 2021, 02:07
Re: Digital SextantFrank Reed13 Jan 2021, 15:58
Re: Digital SextantFrank Reed13 Jan 2021, 16:26
Winter celestial navigation workshopsFrank Reed13 Jan 2021, 21:21
Re: Old Sextant - Charles HutchinsonFrank Reed14 Jan 2021, 16:34
Re: Old Sextant - Charles HutchinsonFrank Reed14 Jan 2021, 21:32
Re: Online meeting todayFrank Reed15 Jan 2021, 19:42
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacFrank Reed16 Jan 2021, 18:36
Re: Aeronautical Periscopic Bubble SextantFrank Reed16 Jan 2021, 19:59
Navigation star namesFrank Reed17 Jan 2021, 04:13
Re: Online meeting todayFrank Reed17 Jan 2021, 17:17
Re: Navigation star namesFrank Reed18 Jan 2021, 04:25
Re: Thomas Sumner & Probus (656 tons)Frank Reed18 Jan 2021, 19:19
Your Earth is too cloudyFrank Reed19 Jan 2021, 18:09
Re: Your Earth is too cloudyFrank Reed20 Jan 2021, 03:18
Re: Question about LoP's and Intercepts on a Mercator ChartFrank Reed21 Jan 2021, 15:34
Re: Soviet star globe with Latin inscriptionsFrank Reed21 Jan 2021, 15:40
Online meeting Friday 2000 UTFrank Reed22 Jan 2021, 02:14
Modern Celestial ONE: Sextants & Sun SightsFrank Reed22 Jan 2021, 17:10
Re: Online meeting Friday 2000 UTFrank Reed22 Jan 2021, 18:04
Re: Online meeting today 2300 UT (6pm EST)Frank Reed24 Jan 2021, 21:24
Re: NY Times Article on GPSFrank Reed25 Jan 2021, 16:52
Re: AstrolabesFrank Reed25 Jan 2021, 18:08
Re: NOAA Competition: MagNet: Model the Geomagnetic FieldFrank Reed26 Jan 2021, 17:59
Celestial Navigation 19th Century Methods WorkshopFrank Reed26 Jan 2021, 18:46
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Frank Reed28 Jan 2021, 18:59
Online meeting today 2000 UT (3pm EST, noon PST)Frank Reed29 Jan 2021, 17:36
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Frank Reed29 Jan 2021, 18:51
Tatakoto subSunFrank Reed30 Jan 2021, 01:09
No Sunday "Office Hours" tomorrow (Jan 31)Frank Reed31 Jan 2021, 02:19
Re: Celestial Navigation in the MoviesFrank Reed2 Feb 2021, 18:13
Re: Celestial Navigation in the MoviesFrank Reed2 Feb 2021, 18:31
Plath certificate: drop of solderFrank Reed2 Feb 2021, 19:10
Re: Celestial Navigation in the MoviesFrank Reed2 Feb 2021, 19:38
Friday online "Office Hours" 2000 UT (3pm EST)Frank Reed4 Feb 2021, 23:17
Analemma.com updated!Frank Reed5 Feb 2021, 16:39
Sun Slow DayFrank Reed9 Feb 2021, 19:31
Re: CP-300/U USAF Star FinderFrank Reed10 Feb 2021, 01:19
Re: How Convincing is a Lunar Eclipse for Proving the Earth is a Sphere?Frank Reed11 Feb 2021, 19:25
Office Hours Today, 3pm EST (2000 UT)Frank Reed12 Feb 2021, 17:32
Online Office Hours: 6pm EST (2300 UT) Practical LunarsFrank Reed14 Feb 2021, 19:46
Re: Sun's Blue and Golden HoursFrank Reed16 Feb 2021, 16:22
Re: True North and PrecessionFrank Reed16 Feb 2021, 17:40
Re: True North and PrecessionFrank Reed19 Feb 2021, 00:25
Re: Bowditch 2019 SucksFrank Reed19 Feb 2021, 15:31
Re: Bowditch 2019 SucksFrank Reed19 Feb 2021, 15:57
Re: True North and PrecessionFrank Reed19 Feb 2021, 16:09
NO online Office Hours meetings this weekendFrank Reed19 Feb 2021, 16:17
Re: Moon’s Horns ConundrumFrank Reed19 Feb 2021, 16:49
Re: Bowditch editions: good and badFrank Reed20 Feb 2021, 02:01
Re: Moon’s Horns ConundrumFrank Reed20 Feb 2021, 06:56
Re: Sunrise on the Moon?Frank Reed21 Feb 2021, 16:06
Orion North ArrowFrank Reed23 Feb 2021, 03:52
Re: Online celestial navigation seminar by Margaret E. Schotte tomorrowFrank Reed23 Feb 2021, 16:12
A little Mars for you...Frank Reed24 Feb 2021, 21:15
Re: Sextant calibration accessoryFrank Reed25 Feb 2021, 23:05
Online meeting today: 3pm EST (2000 UT)Frank Reed26 Feb 2021, 17:58
Re: Push out laser cut plywood models from ChinaFrank Reed26 Feb 2021, 18:15
Re: Sextant calibration accessoryFrank Reed27 Feb 2021, 20:28
Some updates for web appsFrank Reed1 Mar 2021, 19:40
Fifty thousand messages since 2006Frank Reed1 Mar 2021, 19:44
Re: Fifty thousand messages since 2006Frank Reed2 Mar 2021, 06:00
Re: Calculate GHA Aries in your headFrank Reed3 Mar 2021, 19:10
Online "Office Hours" meeting NEXT Friday, March 12Frank Reed5 Mar 2021, 19:43
Re: DipFrank Reed9 Mar 2021, 22:44
Rare alignment of annual phenomenaFrank Reed10 Mar 2021, 16:45
Re: Celesticomp V and other pocket computersFrank Reed10 Mar 2021, 18:16
New versions of GPS Anti Spoof appsFrank Reed10 Mar 2021, 22:21
Re: Location of VenusFrank Reed12 Mar 2021, 00:37
Re: Location of VenusFrank Reed12 Mar 2021, 00:47
Today's "Office Hours" postponed to MondayFrank Reed12 Mar 2021, 17:05
Re: Today's "Office Hours" postponed to MondayFrank Reed15 Mar 2021, 17:42
Re: Capt. Sumner's First LOPFrank Reed15 Mar 2021, 17:48
Satellite navigation in reverseFrank Reed17 Mar 2021, 20:19
Sun northbound at one knotFrank Reed18 Mar 2021, 05:09
Northeast US, eastern Canada: Space Station pass this eveningFrank Reed19 Mar 2021, 22:52
Moon's horns point North/SouthFrank Reed22 Mar 2021, 00:50
Re: Navigation by the MoonFrank Reed25 Mar 2021, 02:00
Online meeting today 2000 UT (4pm EDT, 1pm PDT)Frank Reed26 Mar 2021, 16:16
Re: Suez Canal – Great NewsFrank Reed29 Mar 2021, 20:07
Can you find Aries?Frank Reed29 Mar 2021, 20:18
Re: Navigation by the MoonFrank Reed30 Mar 2021, 02:55
Re: Navigation by the MoonFrank Reed30 Mar 2021, 03:42
Re: Shooting my first LunarsFrank Reed30 Mar 2021, 04:48
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Frank Reed2 Apr 2021, 18:42
Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed9 Apr 2021, 16:38
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed11 Apr 2021, 05:40
Re: Online "Office Hours" meeting in two days (Sunday, 2000 UT)Frank Reed11 Apr 2021, 18:40
GHA of the Sun is easy todayFrank Reed15 Apr 2021, 17:00
Another "Office Hours" session, 4pm Eastern (2000 UT)Frank Reed16 Apr 2021, 03:51
Sunday "Office Hours" session, 4pm Eastern (2000 UT)Frank Reed25 Apr 2021, 02:30
Re: Simex sextantFrank Reed26 Apr 2021, 14:41
Celestial Navigation article in Popular MechanicsFrank Reed26 Apr 2021, 19:02
Re: Golden Globe Race -- how would you detect cheating?Frank Reed27 Apr 2021, 18:58
Michael Collins and the sextant on Apollo 11Frank Reed28 Apr 2021, 21:05
No online "Office Hours" todayFrank Reed29 Apr 2021, 17:30
Re: No online "Office Hours" todayFrank Reed29 Apr 2021, 18:00
Re: Online "Office Hours" todayFrank Reed9 May 2021, 16:38
Pub. 249 origins and historyFrank Reed10 May 2021, 04:56
Re: Online "Office Hours" todayFrank Reed14 May 2021, 15:36
Re: NavList website and cookiesFrank Reed15 May 2021, 17:52
Ken Gebhart obituaryFrank Reed18 May 2021, 18:06
Air Force One sextant?Frank Reed19 May 2021, 21:59
Re: Air Force One sextant?Frank Reed20 May 2021, 02:45
Pierce camera sextantFrank Reed20 May 2021, 18:46
Re: Altitude with artificial horizonFrank Reed21 May 2021, 17:11
Re: Altitude with artificial horizonFrank Reed21 May 2021, 17:38
The anti-Maskelyne POVFrank Reed21 May 2021, 17:57
Re: Altitude with artificial horizonFrank Reed22 May 2021, 02:02
No Office Hours todayFrank Reed23 May 2021, 16:28
Re: Three GPS data comparison: All different. Huh?Frank Reed24 May 2021, 22:41
Re: London hospital employs internal navigationFrank Reed25 May 2021, 16:20
Re: Navigational significance of just a curiosity?Frank Reed27 May 2021, 22:29
Today: Online "Office Hours"Frank Reed28 May 2021, 15:53
Stick shadows and sundial curvesFrank Reed29 May 2021, 21:46
More games with GPS and AIS positionsFrank Reed29 May 2021, 22:00
Re: Stick shadows and sundial curvesFrank Reed30 May 2021, 23:02
Re: Coast Navigation SchoolFrank Reed1 Jun 2021, 05:43
Re: Stick shadows and sundial curvesFrank Reed1 Jun 2021, 17:46
NASA Astronomy Photo of the Day: satellite trailsFrank Reed1 Jun 2021, 22:40
Re: Practice Problems for Tables Methods?Frank Reed2 Jun 2021, 00:39
Re: Help required with a sunclock experimentFrank Reed2 Jun 2021, 15:06
Re: Help required with a sunclock experimentFrank Reed2 Jun 2021, 18:22
Re: Ken Gebhart obituaryFrank Reed2 Jun 2021, 19:40
Re: Problem Practice (group project)Frank Reed3 Jun 2021, 01:57
Re: Relativistic interstellar navigation (or how to avoid getting Lost in Space!)Frank Reed3 Jun 2021, 20:09
Re: Problem Practice (group project)Frank Reed3 Jun 2021, 21:47
Re: Problem Practice (group project)Frank Reed4 Jun 2021, 17:29
Re: Problem Practice (group project)Frank Reed4 Jun 2021, 18:37
Eclipse FixFrank Reed4 Jun 2021, 18:55
Re: Relativistic interstellar navigation (or how to avoid getting Lost in Space!)Frank Reed6 Jun 2021, 00:15
Sorry, no "Office Hours" todayFrank Reed6 Jun 2021, 17:07
How many ways to define a day?Frank Reed12 Jun 2021, 02:30
Re: How many ways to define a day?Frank Reed13 Jun 2021, 03:15
Civil War general, presidential candidate, lunarianFrank Reed13 Jun 2021, 05:46
Re: How many ways to define a day?Frank Reed15 Jun 2021, 22:31
Re: 'Great Dimming' of Betelgeuse solvedFrank Reed16 Jun 2021, 20:48
Old links for NavListFrank Reed17 Jun 2021, 21:56
Moon horns as compassFrank Reed18 Jun 2021, 17:08
Re: International star name pronunciationsFrank Reed20 Jun 2021, 17:13
SolsticeFrank Reed21 Jun 2021, 01:42
Re: Problem Practice (group project)Frank Reed22 Jun 2021, 15:50
Re: How many ways to define a day?Frank Reed22 Jun 2021, 15:57
Re: How many ways to define a day?Frank Reed22 Jun 2021, 16:59
Re: How many ways to define a day?Frank Reed22 Jun 2021, 17:43
Re: International star name pronunciationsFrank Reed22 Jun 2021, 18:29
Re: SolsticeFrank Reed22 Jun 2021, 19:21
Re: SolsticeFrank Reed23 Jun 2021, 06:02
Re: Prob 1/4 of being in a cocked hatFrank Reed23 Jun 2021, 15:54
Re: June 24, 1178: Today in HistoryFrank Reed24 Jun 2021, 19:39
Milky Way photo navigation challengeFrank Reed25 Jun 2021, 19:06
Re: Uk dataFrank Reed25 Jun 2021, 20:25
ADMIN: Expect outages over the next 18 hoursFrank Reed26 Jun 2021, 03:10
Re: Milky Way photo navigation challengeFrank Reed26 Jun 2021, 23:17
Re: Milky Way photo navigation challengeFrank Reed27 Jun 2021, 20:37
Re: Milky Way photo navigation challengeFrank Reed27 Jun 2021, 23:45
Re: Milky Way photo navigation challengeFrank Reed28 Jun 2021, 05:11
Re: Milky Way photo navigation challengeFrank Reed29 Jun 2021, 00:49
Re: Milky Way photo navigation challengeFrank Reed29 Jun 2021, 02:16
Re: A-5 Course and Distance ComputerFrank Reed30 Jun 2021, 16:24
Re: Uk dataFrank Reed30 Jun 2021, 17:03
Re: Moonlight and Visible HorizonFrank Reed30 Jun 2021, 23:00
Re: A-5 Course and Distance ComputerFrank Reed4 Jul 2021, 00:33
Re: A-5 Course and Distance ComputerFrank Reed4 Jul 2021, 03:23
Re: Guy Murchie?Frank Reed5 Jul 2021, 15:02
Re: Observational TwilightFrank Reed5 Jul 2021, 15:45
Re: Lunars in historyFrank Reed8 Jul 2021, 00:49
Sun SD comparison photosFrank Reed10 Jul 2021, 12:04
Re: Sun SD comparison photosFrank Reed10 Jul 2021, 21:04
Re: HO 249 Volume 1 Selected Stars Epoch 2000Frank Reed17 Jul 2021, 02:57
Milky Way photo or fake?Frank Reed18 Jul 2021, 20:37
Dip from the deep blue originFrank Reed20 Jul 2021, 13:02
Average Sun SDFrank Reed24 Jul 2021, 17:29
Re: StarFinder EpochFrank Reed27 Jul 2021, 18:14
Re: John Franklin lunar from 1818 and Mendoza y Rios methodFrank Reed31 Jul 2021, 19:36
ADMIN: NavList Operations ContributionsFrank Reed5 Aug 2021, 23:47
Degree sign in WindowsFrank Reed6 Aug 2021, 16:03
Re: Degree sign in WindowsFrank Reed8 Aug 2021, 14:18
Re: Degree sign in WindowsFrank Reed8 Aug 2021, 20:20
Re: Degree sign in WindowsFrank Reed8 Aug 2021, 21:03
Re: Navigation Symbols in UnicodeFrank Reed11 Aug 2021, 19:15
Re: 27th Meeting of Researchers of Slide RulesFrank Reed17 Aug 2021, 03:12
Willmann-Bell astronomical publicationsFrank Reed17 Aug 2021, 04:21
Re: I think I saw NunkiFrank Reed19 Aug 2021, 16:17
Re: Longitude by star clockFrank Reed19 Aug 2021, 17:14
Re: Tropical Storm HenriFrank Reed22 Aug 2021, 23:43
Compare Methods: Lat/Lon Near NoonFrank Reed28 Aug 2021, 14:27
Re: Longitude by star clockFrank Reed30 Aug 2021, 15:54
Online celestial navigation classes scheduled for FallFrank Reed31 Aug 2021, 23:08
Re: Compare Methods: Lat/Lon Near NoonFrank Reed31 Aug 2021, 23:14
Re: Compare Methods: Lat/Lon Near NoonFrank Reed31 Aug 2021, 23:19
Re: Eldridge tide tables sun ephemerisFrank Reed2 Sep 2021, 18:50
Re: Air Force One sextant?Frank Reed3 Sep 2021, 22:17
Re: Air Force One sextant? [Spoiler!]Frank Reed4 Sep 2021, 13:49
The Myth of MauryFrank Reed6 Sep 2021, 15:10
Re: $5 celestial navigation books at your libraryFrank Reed6 Sep 2021, 15:48
ADMIN: internet connection speeds and statusFrank Reed6 Sep 2021, 16:05
Re: Compare Methods: Lat/Lon Near NoonFrank Reed7 Sep 2021, 01:56
Re: Anomalous atmospheric conditions and Dip correction?Frank Reed7 Sep 2021, 02:24
Re: J S Letcher and LunarsFrank Reed9 Sep 2021, 14:32
Re: Three Oddball SextantsFrank Reed10 Sep 2021, 16:30
Re: Compare Methods: Lat/Lon Near NoonFrank Reed13 Sep 2021, 10:55
What is a chronometer?Frank Reed18 Sep 2021, 14:19
Re: HiTech scratchpad instead of paper&pencil?Frank Reed22 Sep 2021, 14:47
Side error is not a real errorFrank Reed27 Sep 2021, 17:12
Re: Side error is not a real errorFrank Reed28 Sep 2021, 15:08
Online workshops: NavList discount and repeat rateFrank Reed28 Sep 2021, 17:23
Re: IE determination Freiberger Yacht SextantFrank Reed28 Sep 2021, 19:41
MS Flight Simulator and a nova in Corona BorealisFrank Reed3 Oct 2021, 04:07
Re: MS Flight Simulator and a nova in Corona BorealisFrank Reed4 Oct 2021, 17:06
Re: Finding IC for A-12 bubble sextantsFrank Reed6 Oct 2021, 14:01
Re: Online celestial navigation classes scheduled for FallFrank Reed8 Oct 2021, 00:21
Re: Finding IC for A-12 bubble sextantsFrank Reed9 Oct 2021, 10:01
Re: An instant value vs an integrated one?Frank Reed10 Oct 2021, 16:47
Re: Contrail and Aircraft distanceFrank Reed12 Oct 2021, 00:43
Re: Aircraft position when you first hear itFrank Reed13 Oct 2021, 12:55
Re: Francis Chichester's LogsFrank Reed16 Oct 2021, 00:50
Venus in daylight in southern latitudesFrank Reed17 Oct 2021, 17:46
Moonrise over Connecticut, 19 October 2021Frank Reed20 Oct 2021, 15:12
Sextant in an award-winning French filmFrank Reed20 Oct 2021, 15:52
Re: Venus in daylight in southern latitudesFrank Reed21 Oct 2021, 00:51
Re: Moonrise over Connecticut, 19 October 2021Frank Reed21 Oct 2021, 01:08
Re: Venus in daylight in southern latitudesFrank Reed22 Oct 2021, 03:21
Sky and Telescope in freefallFrank Reed23 Oct 2021, 23:42
Re: Moonrise over Connecticut, 19 October 2021Frank Reed28 Oct 2021, 15:09
Re: Moonrise over Connecticut, 19 October 2021Frank Reed28 Oct 2021, 15:31
Re: The Three-body ProblemFrank Reed28 Oct 2021, 16:53
Re:Moonrise-over-ConnecticutFrank Reed1 Nov 2021, 22:26
Tomorrow is Sun fast dayFrank Reed2 Nov 2021, 18:35
Re: Tomorrow is Sun fast dayFrank Reed3 Nov 2021, 10:05
Re:Moonrise-over-ConnecticutFrank Reed3 Nov 2021, 11:10
Re: Tomorrow is Sun fast dayFrank Reed4 Nov 2021, 00:47
The Bajo "Sea Nomads" and the starsFrank Reed4 Nov 2021, 01:39
Re: Tomorrow is Sun fast dayFrank Reed4 Nov 2021, 16:29
Re: Any experience with a C&P "Special" sextant?Frank Reed10 Nov 2021, 18:51
Re: Reeds versine formulasFrank Reed12 Nov 2021, 19:18
Re: Navigation Spreadsheets in 2022Frank Reed14 Nov 2021, 17:05
An astronaut and former studentFrank Reed14 Nov 2021, 17:43
Re: Practical Haversine UseFrank Reed14 Nov 2021, 18:11
Re:Moonrise-over-ConnecticutFrank Reed15 Nov 2021, 12:02
Re: Navigation Spreadsheets in 2022Frank Reed15 Nov 2021, 12:09
Re: Moonrise over Connecticut, 19 October 2021Frank Reed15 Nov 2021, 12:32
Re: An interesting series of Navigation Books by the same authorFrank Reed15 Nov 2021, 12:37
Re: Bare essentialsFrank Reed22 Nov 2021, 14:01
Re: Bare essentialsFrank Reed22 Nov 2021, 18:52
Re: EoT Curve calculated by VBFrank Reed24 Nov 2021, 16:17
Re: An interesting series of Navigation Books by the same authorFrank Reed25 Nov 2021, 02:13
Re: Navigation Spreadsheets in 2022Frank Reed26 Nov 2021, 18:54
Re: Cosmic Ray Muons Not GPS SatellitesFrank Reed27 Nov 2021, 19:36
Re: An interesting series of Navigation Books by the same authorFrank Reed27 Nov 2021, 20:14
Re: Scientific calculators - statistics modeFrank Reed30 Nov 2021, 23:58
Re: Celnav.nl is no more? Pity!Frank Reed2 Dec 2021, 18:53
Re: Celnav.nl is no more? Pity!Frank Reed3 Dec 2021, 02:42
My first posts are legally adults todayFrank Reed3 Dec 2021, 23:15
Re: International Date LineFrank Reed5 Dec 2021, 14:30
Antarctic eclipse navigationFrank Reed5 Dec 2021, 16:02
Re: Where lies the hole in the Polar Cusp?Frank Reed7 Dec 2021, 15:15
Re: Verifying the Vexatious 'v' CorrectionFrank Reed8 Dec 2021, 15:33
Visiting San Francisco areaFrank Reed9 Dec 2021, 01:20
Re: Navigation Spreadsheets in 2022Frank Reed10 Dec 2021, 18:15
Re: Where is the Prime Meridian?Frank Reed10 Dec 2021, 19:51
Re: An interesting series of Navigation Books by the same authorFrank Reed11 Dec 2021, 00:43
Latitude and longitude by birdfootFrank Reed20 Dec 2021, 01:30
Jack London: author and navigatorFrank Reed20 Dec 2021, 01:45
Re: Jack London: author and navigatorFrank Reed20 Dec 2021, 18:45
Re: Jack London: author and navigatorFrank Reed20 Dec 2021, 19:32
Re: Latitude and longitude by birdfootFrank Reed21 Dec 2021, 01:16
Re: Latitude and longitude by birdfootFrank Reed21 Dec 2021, 01:34
Re: Latitude and longitude by birdfootFrank Reed21 Dec 2021, 01:58
Re: Latitude and longitude by birdfootFrank Reed21 Dec 2021, 03:35
When and where is the Solstice today?Frank Reed21 Dec 2021, 03:40
Chilean author: future of celestialFrank Reed21 Dec 2021, 19:10
Re: Latitude and longitude by birdfootFrank Reed23 Dec 2021, 03:11
Re: Latitude and longitude by birdfootFrank Reed23 Dec 2021, 20:05
Re: Latitude and longitude by birdfootFrank Reed23 Dec 2021, 20:39
Re: Bermuda to St Helena on a North Atlantic Mercator ChartFrank Reed24 Dec 2021, 19:06
Re: Bermuda to St Helena on a North Atlantic Mercator ChartFrank Reed25 Dec 2021, 19:58
See sunspots in sextant scopesFrank Reed26 Dec 2021, 18:35
Re: Bermuda to St Helena on a North Atlantic Mercator ChartFrank Reed28 Dec 2021, 17:55
Internation Date LineFrank Reed31 Dec 2021, 17:17
Re: Sextant calibration accessoryFred Hebard8 Mar 2021, 17:15
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureFred Hebard2 Apr 2021, 13:54
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureFred Hebard3 Apr 2021, 09:36
Re: Simex sextantFred Hebard26 Apr 2021, 15:17
Shade needs to be glued back in on C+P sextantFred Hebard5 Jun 2021, 18:08
Re: SolsticeFred Hebard23 Jun 2021, 10:40
Re: The Three-body ProblemFred Hebard25 Oct 2021, 13:39
Re: The Three-body ProblemFred Hebard27 Oct 2021, 11:02
Re: Practical Haversine UseFred Hebard14 Nov 2021, 21:16
Re: HO 208 vs Compact NA tables.Frederick Curtis26 Jan 2021, 17:59
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Frederick Curtis19 Feb 2021, 16:58
Re: Compare Methods: Lat/Lon Near NoonFrederick Curtis31 Aug 2021, 20:12
Re: Compare Methods: Lat/Lon Near NoonFrederick Curtis2 Sep 2021, 00:45
Eldridge tide tables sun ephemerisFrederick Curtis2 Sep 2021, 18:28
Re: $5 celestial navigation books at your libraryFrederick Curtis4 Sep 2021, 22:57
Re: Freiberger Yacht Sextant Case Mod.Frederick Curtis17 Oct 2021, 03:47
Re: HO 214 HistoryFrederick Curtis18 Nov 2021, 22:31
Catch Australia while you canGary LaPook2 Jan 2021, 09:01
Re: Perihelion coming up in a few minutesGary LaPook3 Jan 2021, 00:13
Re: Catch Australia while you canGary LaPook3 Jan 2021, 00:38
Negative leap second?Gary LaPook5 Jan 2021, 19:55
Re: Aeronautical Periscopic Bubble SextantGary LaPook16 Jan 2021, 06:33
Re: Flat BygraveGary LaPook19 Jan 2021, 20:09
Re: CP-300/U USAF Star FinderGary LaPook23 Jan 2021, 10:22
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook24 Jan 2021, 02:08
Re: A-10 Bubble Sextant AssemblyGary LaPook24 Jan 2021, 02:16
Re: A-10 Bubble Sextant AssemblyGary LaPook24 Jan 2021, 02:17
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook24 Jan 2021, 02:20
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook25 Jan 2021, 06:32
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook25 Jan 2021, 20:20
Re: AstrolabesGary LaPook26 Jan 2021, 08:09
Re: AstrolabesGary LaPook26 Jan 2021, 08:27
Re: HO 208 vs Compact NA tables.Gary LaPook26 Jan 2021, 18:51
Re: HO 208 vs Compact NA tables.Gary LaPook27 Jan 2021, 07:13
Re: AstrolabesGary LaPook29 Jan 2021, 08:51
Re: About the Waylosing: my own experience.Gary LaPook4 Feb 2021, 09:48
Re: RdfGary LaPook8 Feb 2021, 10:35
Re: RdfGary LaPook8 Feb 2021, 10:37
Re: CP-300/U USAF Star FinderGary LaPook8 Feb 2021, 20:12
Re: RdfGary LaPook8 Feb 2021, 20:28
Re: CP-300/U USAF Star FinderGary LaPook10 Feb 2021, 01:51
Re: On this CP-300\U, recently discussed.Gary LaPook12 Feb 2021, 23:19
Re: Bowditch editions: good and badGary LaPook22 Feb 2021, 20:24
Re: Cel Nav SimulatorGary LaPook22 Feb 2021, 20:57
Re: Calculate GHA Aries in your headGary LaPook1 Mar 2021, 23:44
Re: Calculate GHA Aries in your headGary LaPook1 Mar 2021, 23:46
Re: Calculate GHA Aries in your headGary LaPook1 Mar 2021, 23:49
Re: Wind Velocity from Three DriftsGary LaPook3 Mar 2021, 08:48
Re: Wind Velocity from Three DriftsGary LaPook3 Mar 2021, 18:26
Re: Calculate GHA Aries in your headGary LaPook4 Mar 2021, 08:44
Re: Calculate GHA Aries in your headGary LaPook4 Mar 2021, 08:58
Re: Wind Velocity from Three DriftsGary LaPook5 Mar 2021, 09:34
Re: Wind Velocity from Three DriftsGary LaPook8 Mar 2021, 19:38
Re: Wind Velocity from Three DriftsGary LaPook8 Mar 2021, 21:05
Re: Wind Velocity from Three DriftsGary LaPook11 Mar 2021, 20:55
Re: Wind Velocity from Three DriftsGary LaPook11 Mar 2021, 20:57
Re: Wind Velocity from Three DriftsGary LaPook12 Mar 2021, 20:37
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:00
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:02
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:05
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:09
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:11
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 07:16
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 11:09
Re: Wind Velocity from Three DriftsGary LaPook13 Mar 2021, 11:11
Re: Running down an Astro-Position LineGary LaPook15 Mar 2021, 08:12
Re: Running down an Astro-Position LineGary LaPook15 Mar 2021, 20:59
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 07:51
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 09:21
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 10:27
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 11:01
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 11:05
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 19:17
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 19:20
Re: Running down an Astro-Position LineGary LaPook16 Mar 2021, 19:31
Re: Running down an Astro-Position LineGary LaPook18 Mar 2021, 07:22
Re: AH: windproof shades materialGary LaPook19 Mar 2021, 06:55
Re: Plot Sheet GeneratorGary LaPook24 Mar 2021, 18:49
Re: Running down an Astro-Position LineGary LaPook28 Mar 2021, 19:27
Re: Telemeter/QuadrantGary LaPook29 Mar 2021, 06:04
Re: Telemeter/QuadrantGary LaPook29 Mar 2021, 06:06
Re: Telemeter/QuadrantGary LaPook29 Mar 2021, 06:09
Re: Suez Canal – Great NewsGary LaPook29 Mar 2021, 19:11
Re: Plot Sheet GeneratorGary LaPook31 Mar 2021, 07:20
Re: Matthew Flinders ChartsGary LaPook8 Apr 2021, 00:44
Re: A Sun-compass landfall?Gary LaPook8 Apr 2021, 17:51
Re: A Diy E6-B?Gary LaPook15 Apr 2021, 03:54
Re: A Diy E6-B?Gary LaPook15 Apr 2021, 23:24
Re: A Diy E6-B?Gary LaPook15 Apr 2021, 23:36
Re: A Sun-compass landfall?Gary LaPook16 Apr 2021, 05:27
Re: A Sun-compass landfall?Gary LaPook16 Apr 2021, 05:37
Re: A Sun-compass landfall?Gary LaPook16 Apr 2021, 08:01
Re: A Diy E6-B?Gary LaPook16 Apr 2021, 08:03
Re: A Sun-compass landfall?Gary LaPook17 Apr 2021, 06:35
Re: Wind Velocity from Three DriftsGary LaPook18 Apr 2021, 21:14
Re: Wind Velocity from Three DriftsGary LaPook19 Apr 2021, 23:41
Re: Wind Velocity from Three DriftsGary LaPook20 Apr 2021, 00:17
Re: A Diy E6-B?Gary LaPook20 Apr 2021, 05:01
Re: A Diy E6-B?Gary LaPook20 Apr 2021, 05:46
Re: A Diy E6-B?Gary LaPook20 Apr 2021, 05:52
Re: A Diy E6-B?Gary LaPook20 Apr 2021, 06:14
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr 2021, 07:41
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr 2021, 18:38
Re: Golden Globe Race -- how would you detect cheating?Gary LaPook28 Apr 2021, 18:43
Re: Digital Aries clockGary LaPook5 May 2021, 20:48
Re: 2102D improvementsGary LaPook13 May 2021, 17:08
Re: Do you recognize this?Gary LaPook17 May 2021, 09:36
Re: Do you recognize this?Gary LaPook17 May 2021, 09:47
Re: Do you recognize this?Gary LaPook17 May 2021, 09:51
Re: Do you recognize this?Gary LaPook17 May 2021, 10:05
Re: Do you recognize this?Gary LaPook17 May 2021, 21:41
Re: Do you recognize this?Gary LaPook18 May 2021, 07:00
Re: Ken Gebhart obituaryGary LaPook20 May 2021, 07:23
Re: Air Force One sextant?Gary LaPook20 May 2021, 07:39
Re: Air Force One sextant?Gary LaPook21 May 2021, 03:58
Re: Altitude with artificial horizonGary LaPook21 May 2021, 18:55
Re: Altitude with artificial horizonGary LaPook21 May 2021, 19:05
Re: NASR question on large F valuesGary LaPook23 May 2021, 17:29
Re: Ken Gebhart obituaryGary LaPook23 May 2021, 17:49
Re: Universal Plotting Sheet and Weir diagramGary LaPook23 May 2021, 19:07
Re: Universal Plotting Sheet and Weir diagramGary LaPook24 May 2021, 18:22
Re: Kollsman periscopic sextant mountGary LaPook11 Jun 2021, 00:13
Re: Bill Morris' MHR1 reproductionGary LaPook12 Jun 2021, 08:38
Re: Bill Morris' MHR1 reproductionGary LaPook12 Jun 2021, 08:42
Re: Bill Morris' MHR1 reproductionGary LaPook12 Jun 2021, 09:03
Re: Bill Morris' MHR1 reproductionGary LaPook12 Jun 2021, 20:45
Re: Bill Morris' MHR1 reproductionGary LaPook13 Jun 2021, 09:33
Re: My Kollsman sextant.Gary LaPook19 Jun 2021, 05:18
Re: International star name pronunciationsGary LaPook20 Jun 2021, 21:47
Re: Mechanical Maneuvering Board instructionsGary LaPook22 Jun 2021, 18:07
Re: Mechanical Maneuvering Board instructionsGary LaPook22 Jun 2021, 18:26
Re: Prob 1/4 of being in a cocked hatGary LaPook23 Jun 2021, 19:10
Re: Uk dataGary LaPook25 Jun 2021, 19:07
Re: A-5 Course and Distance ComputerGary LaPook28 Jun 2021, 23:27
Re: A-5 Course and Distance ComputerGary LaPook28 Jun 2021, 23:42
Re: A-5 Course and Distance ComputerGary LaPook28 Jun 2021, 23:52
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 02:09
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 02:34
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 04:11
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 04:16
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 08:15
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 21:49
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 21:51
Re: A-5 Course and Distance ComputerGary LaPook29 Jun 2021, 21:52
Re: A-5 Course and Distance ComputerGary LaPook30 Jun 2021, 18:40
Re: Moonlight and Visible HorizonGary LaPook30 Jun 2021, 22:43
Re: A-5 Course and Distance ComputerGary LaPook2 Jul 2021, 04:06
Re: Airborne CelNav demo Flight Simulator - the Earhart Howland flightGary LaPook2 Jul 2021, 08:36
Re: A-5 Course and Distance ComputerGary LaPook4 Jul 2021, 19:10
Re: A-5 Course and Distance ComputerGary LaPook5 Jul 2021, 05:29
Artificial horizons for saleGary LaPook5 Jul 2021, 08:19
Re: Guy Murchie?Gary LaPook5 Jul 2021, 08:24
Re: Guy Murchie?Gary LaPook5 Jul 2021, 08:27
Re: Observational TwilightGary LaPook5 Jul 2021, 18:32
Re: Guy Murchie?Gary LaPook5 Jul 2021, 18:32
Re: Recording sextant (maybe octant)?Gary LaPook9 Jul 2021, 19:24
Re: Recording sextant (maybe octant)?Gary LaPook9 Jul 2021, 19:27
Re: Recording sextant (maybe octant)?Gary LaPook10 Jul 2021, 11:06
Re: Recording sextant (maybe octant)?Gary LaPook14 Jul 2021, 03:06
Re: Recording sextant (maybe octant)?Gary LaPook15 Jul 2021, 04:56
Re: HO 249 Volume 1 Selected Stars Epoch 2000Gary LaPook17 Jul 2021, 04:33
Re: An amazing reflectionGary LaPook17 Jul 2021, 19:35
Re: An azimuth formula that works everywhere? Even on poles?Gary LaPook21 Jul 2021, 22:16
Re: An azimuth formula that works everywhere? Even on poles?Gary LaPook21 Jul 2021, 22:20
Re: $5 celestial navigation books at your libraryGary LaPook4 Sep 2021, 19:04
Re: $5 celestial navigation books at your libraryGary LaPook5 Sep 2021, 05:36
Re: The Myth of MauryGary LaPook6 Sep 2021, 20:45
Re: ADMIN: internet connection speeds and statusGary LaPook6 Sep 2021, 20:59
Re: Kollsman bubble sextant bubble repairGary LaPook15 Sep 2021, 16:23
Re: Finding IC for A-12 bubble sextantsGary LaPook6 Oct 2021, 04:30
Re: Finding IC for A-12 bubble sextantsGary LaPook6 Oct 2021, 16:30
Re: Finding IC for A-12 bubble sextantsGary LaPook8 Oct 2021, 08:12
Re: Finding IC for A-12 bubble sextantsGary LaPook8 Oct 2021, 08:23
Re: The Three-body ProblemGary LaPook25 Oct 2021, 21:16
Re: HO 214 HistoryGary LaPook30 Oct 2021, 04:35
Re: Kollsman electronic averager powerGary LaPook17 Nov 2021, 19:20
Re: Kollsman electronic averager powerGary LaPook19 Nov 2021, 07:26
Re: Kollsman electronic averager powerGary LaPook19 Nov 2021, 18:39
Re: The Last Navigator VideoGary LaPook30 Nov 2021, 07:17
Re: The Last Navigator VideoGary LaPook1 Dec 2021, 18:16
Re:DIY Starfinder - a lockdown projectGary LaPook24 Dec 2021, 19:44
Re:DIY Starfinder - a lockdown projectGary LaPook24 Dec 2021, 19:49
Re:DIY Starfinder - a lockdown projectGary LaPook24 Dec 2021, 19:54
Re: Bermuda to St Helena on a North Atlantic Mercator ChartGary LaPook27 Dec 2021, 00:22
Re: Bermuda to St Helena on a North Atlantic Mercator ChartGary LaPook27 Dec 2021, 00:23
Re: Bermuda to St Helena on a North Atlantic Mercator ChartGary LaPook27 Dec 2021, 00:41
Re: Bermuda to St Helena on a North Atlantic Mercator ChartGary LaPook27 Dec 2021, 06:10
Re: Silvering mirrors with mercury-tin amalgamGeoff Hitchcox20 Mar 2021, 09:05
Re: Navigation by the MoonGeoff Hitchcox27 Mar 2021, 08:28
Re: Navigation by the MoonGeoff Hitchcox30 Mar 2021, 07:44
Re: Excel AlmanacGeoffrey Kolbe23 Jan 2021, 18:45
Re: AstrolabesGeoffrey Kolbe26 Jan 2021, 05:45
Re: AstrolabesGeoffrey Kolbe26 Jan 2021, 08:15
Re: AstrolabesGeoffrey Kolbe28 Jan 2021, 14:44
Re: How Convincing is a Lunar Eclipse for Proving the Earth is a Sphere?Geoffrey Kolbe11 Feb 2021, 13:56
Re: Stereographic Projection of the EclipticGeoffrey Kolbe15 Feb 2021, 06:33
Re: Stereographic Projection of the EclipticGeoffrey Kolbe15 Feb 2021, 09:43
Re: Stereographic Projection of the EclipticGeoffrey Kolbe15 Feb 2021, 17:52
Re: Moon’s Horns ConundrumGeoffrey Kolbe20 Feb 2021, 06:25
Re: Surveying problemGeoffrey Kolbe25 Feb 2021, 14:21
Re: Calculate GHA Aries in your headGeoffrey Kolbe2 Mar 2021, 05:54
Re: Moon's horns point North/SouthGeoffrey Kolbe22 Mar 2021, 08:52
Re: A Sun-compass landfall?Geoffrey Kolbe11 Apr 2021, 07:20
Re: A Sun-compass landfall?Geoffrey Kolbe12 Apr 2021, 04:40
Re: Silvering mirrors with mercury-tin amalgamGeoffrey Kolbe8 May 2021, 07:40
Help required with a sunclock experimentGeoffrey Kolbe2 Jun 2021, 07:53
Re: Help required with a sunclock experimentGeoffrey Kolbe2 Jun 2021, 17:57
Re: Help required with a sunclock experimentGeoffrey Kolbe2 Jun 2021, 18:14
Re: Help required with a sunclock experimentGeoffrey Kolbe3 Jun 2021, 05:00
Results of the sunclock experimentGeoffrey Kolbe4 Jun 2021, 08:40
Correction: Results of the sunclock experimentGeoffrey Kolbe4 Jun 2021, 10:32
Re: Results of the sunclock experimentGeoffrey Kolbe5 Jun 2021, 07:40
Re: Results of the sunclock experimentGeoffrey Kolbe5 Jun 2021, 14:59
Re: Results of the sunclock experimentGeoffrey Kolbe5 Jun 2021, 17:53
Sunclock apparatusGeoffrey Kolbe6 Jun 2021, 13:21
Re: Bill Morris' MHR1 reproductionGeoffrey Kolbe12 Jun 2021, 14:02
Re: How many ways to define a day?Geoffrey Kolbe16 Jun 2021, 06:46
Re: Prob 1/4 of being in a cocked hatGeoffrey Kolbe24 Jun 2021, 11:32
Re: Uk dataGeoffrey Kolbe27 Jun 2021, 04:50
Selling an A-12 bubble sextantGeoffrey Kolbe11 Jul 2021, 15:25
Re: Selling an A-12 bubble sextantGeoffrey Kolbe12 Jul 2021, 04:59
Re: Selling an A-12 bubble sextantGeoffrey Kolbe13 Jul 2021, 13:24
Re: An azimuth formula that works everywhere? Even on poles?Geoffrey Kolbe24 Jul 2021, 07:58
Re: Three Oddball SextantsGeoffrey Kolbe11 Sep 2021, 15:52
Re: A12 bubble chamberGeoffrey Kolbe15 Sep 2021, 09:43
Re: What is a chronometer?Geoffrey Kolbe19 Sep 2021, 10:51
Navigate by the stars - from a submerged submarine...Geoffrey Kolbe6 Oct 2021, 05:46
Re: Finding IC for A-12 bubble sextantsGeoffrey Kolbe7 Oct 2021, 05:17
Re: Finding IC for A-12 bubble sextantsGeoffrey Kolbe9 Oct 2021, 07:56
Re: Finding IC for A-12 bubble sextantsGeoffrey Kolbe10 Oct 2021, 08:10
Re: Finding IC for A-12 bubble sextantsGeoffrey Kolbe13 Oct 2021, 06:08
Re: Bare essentialsGeoffrey Kolbe20 Nov 2021, 05:31
Re: Bare essentialsGeoffrey Kolbe21 Nov 2021, 09:36
Re: Where is the Prime Meridian?Geoffrey Kolbe11 Dec 2021, 12:01
A Plath Sextant listed for sale with an odd eye pieceGlen Swanson7 Feb 2021, 10:21
Re: A Plath Sextant listed for sale with an odd eye pieceGlen Swanson7 Feb 2021, 17:27
Re: A Plath Sextant listed for sale with an odd eye pieceGlen Swanson8 Feb 2021, 06:56
Re: A Plath Sextant listed for sale with an odd eye pieceGlen Swanson9 Feb 2021, 17:18
Re: A Plath Sextant listed for sale with an odd eye pieceGlen Swanson11 Feb 2021, 11:39
Celesticomp V and other pocket computersGlen Swanson10 Mar 2021, 10:47
Re: Celesticomp V and other pocket computersGlen Swanson10 Mar 2021, 17:04
Re: Celesticomp V and other pocket computersGlen Swanson11 Mar 2021, 17:24
Re: Celesticomp V and other pocket computersGlen Swanson13 Mar 2021, 09:56
Re: Celesticomp V (more pages from M Har ris’ book)Glen Swanson13 Mar 2021, 10:16
Re: Three Oddball SextantsGlen Swanson13 Sep 2021, 10:12
I couldn’t help myselfGlen Swanson3 Oct 2021, 17:36
Re: When and where is the Solstice today?Glen Swanson21 Dec 2021, 05:43
Re: When and where is the Solstice today?Glen Swanson21 Dec 2021, 12:44
Breaking News....Greg B23 Feb 2021, 04:30
Re: Altitude with artificial hirizonGreg Herdt21 May 2021, 17:18
Re: Altitude with artificial horizonGreg Herdt21 May 2021, 19:40
Re: Working Aircraft Bubble Sextants For SaleGreg Herdt2 Nov 2021, 19:36
Re: Own sextant - always betterGreg Rudzinski11 Jan 2021, 02:39
Re: HO 208 vs Compact NA tables.Greg Rudzinski26 Jan 2021, 20:51
Re: HO 208 vs Compact NA tables.Greg Rudzinski27 Jan 2021, 23:58
Re: Circum nav solo with sextant and paper chartGreg Rudzinski2 Feb 2021, 14:38
Re: Office Hours Ageton ClassicGreg Rudzinski6 Feb 2021, 21:05
Re: Office Hours Ageton ClassicGreg Rudzinski7 Feb 2021, 13:34
Re: Office Hours Ageton ClassicGreg Rudzinski10 Feb 2021, 16:53
Re: Office Hours Ageton ClassicGreg Rudzinski10 Feb 2021, 18:37
Re: Office Hours Ageton ClassicGreg Rudzinski11 Feb 2021, 21:23
Re: Office Hours Today, 3pm EST (2000 UT)Greg Rudzinski13 Feb 2021, 13:13
Re: Moon AmplitudeGreg Rudzinski14 Feb 2021, 22:01
Re: Breaking News....Greg Rudzinski23 Feb 2021, 21:02
Re: Sextant calibration accessoryGreg Rudzinski26 Feb 2021, 13:30
Re: AH: windproof shades materialGreg Rudzinski17 Mar 2021, 17:29
Re: Ebbco Sextant infoGreg Rudzinski27 Mar 2021, 16:41
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureGreg Rudzinski1 Apr 2021, 17:09
Re: A series of articles appearing in Ocean NavigatorGreg Rudzinski4 Apr 2021, 00:29
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski6 Apr 2021, 14:33
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski6 Apr 2021, 23:07
Re: Time Sight and Ex-Meridian by BygraveGreg Rudzinski8 Apr 2021, 12:56
Re: Golden Globe Race -- how would you detect cheating?Greg Rudzinski27 Apr 2021, 16:53
Re: Ken Gebhart obituaryGreg Rudzinski18 May 2021, 18:17
Re: Universal Plotting Sheet and Weir diagramGreg Rudzinski22 May 2021, 18:50
Re: Problem Practice (group project)Greg Rudzinski3 Jun 2021, 14:30
Re: Problem Practice (group project)Greg Rudzinski3 Jun 2021, 22:43
Re: Shade needs to be glued back in on C+P sextantGreg Rudzinski5 Jun 2021, 19:59
Re: Observational TwilightGreg Rudzinski5 Jul 2021, 14:33
Re: Tropical Storm HenriGreg Rudzinski25 Aug 2021, 14:16
Re: Anyone have a 1980's Tamaya Instruction Manual?Greg Rudzinski5 Oct 2021, 21:47
Re: Freiberger Yacht Sextant Case Mod.Greg Rudzinski17 Oct 2021, 12:47
Re: Jack London: author and navigatorGreg Rudzinski20 Dec 2021, 01:58
Re: Jack London: author and navigatorGreg Rudzinski20 Dec 2021, 22:52
Moonlight and Visible HorizonGuus Dekker30 Jun 2021, 20:11
Re: Moonlight and Visible HorizonGuus Dekker1 Jul 2021, 06:15
Re: Excel AlmanacHerman Dekker6 Jan 2021, 15:13
Re: Excel AlmanacHerman Dekker7 Jan 2021, 18:37
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacHerman Dekker12 Jan 2021, 17:50
Re: AstrolabesHerman Dekker26 Jan 2021, 08:19
Office Hours Ageton ClassicHerman Dekker6 Feb 2021, 07:04
Re: Office Hours Ageton ClassicHerman Dekker6 Feb 2021, 15:46
Re: Push out laser cut plywood models from ChinaHerman Dekker1 Mar 2021, 17:47
Re: Davis WorksheetsHerman Dekker11 Mar 2021, 08:55
Navigation Progs from NewZealand.Herman Dekker11 Mar 2021, 10:03
Ebbco Sextant infoHerman Dekker27 Mar 2021, 14:36
Digital Aries clockHerman Dekker3 May 2021, 08:02
Re: Digital Aries clockHerman Dekker4 May 2021, 10:51
Re: Digital Aries clockHerman Dekker6 May 2021, 07:25
Re: Universal Plotting Sheet and Weir diagramHerman Dekker23 May 2021, 08:46
Re: Universal Plotting Sheet and Weir diagramHerman Dekker24 May 2021, 08:33
Re: Sun SD comparison photosHerman Dekker10 Jul 2021, 19:41
Re: Degree sign in WindowsHerman Dekker7 Aug 2021, 07:10
Re: Degree sign in WindowsHerman Dekker8 Aug 2021, 13:21
Cheapest Scientific CalculatorHerman Dekker28 Aug 2021, 07:57
Re: Eldridge tide tables sun ephemerisHerman Dekker3 Sep 2021, 07:03
Re: Compare Methods: Lat/Lon Near NoonHerman Dekker15 Sep 2021, 20:40
IE determination Freiberger Yacht Sextant.Herman Dekker24 Sep 2021, 14:36
IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 06:53
Re: IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 17:45
Re: IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 20:13
Re: IE determination Freiberger Yacht Sextant.Herman Dekker27 Sep 2021, 06:50
Re: IE determination Freiberger Yacht Sextant.Herman Dekker27 Sep 2021, 13:40
Re: Side error is not a real errorHerman Dekker28 Sep 2021, 16:27
Re: Side error is not a real errorHerman Dekker28 Sep 2021, 20:53
Re: Finding IC for A-12 bubble sextants+ AntiSpoofHerman Dekker7 Oct 2021, 17:01
Re: Finding IC for A-12 bubble sextantsHerman Dekker9 Oct 2021, 09:51
Freiberger Yacht Sextant Case Mod.Herman Dekker16 Oct 2021, 16:48
Re: Freiberger Yacht Sextant Case Mod.Herman Dekker18 Oct 2021, 11:10
Re: Moonrise over Connecticut, 19 October 2021Herman Dekker24 Oct 2021, 10:20
Re: Tomorrow is Sun fast dayHerman Dekker2 Nov 2021, 19:39
Re: AM and PM time sightsHerman Dekker9 Nov 2021, 21:06
AM and PM time sightsHerman Dekker10 Nov 2021, 10:18
Re: AM and PM time sightsHerman Dekker12 Nov 2021, 13:36
Re: Bare essentialsHerman Dekker23 Nov 2021, 09:03
Re: Celnav.nl is no more? Pity!Herman Dekker3 Dec 2021, 00:29
Re: Kollsman Aircraft SextantsHerman Dekker3 Dec 2021, 07:46
Re: Celnav.nl is no more? Pity!Herman Dekker3 Dec 2021, 15:39
Re:DIY Starfinder - a lockdown projectHerman Dekker13 Dec 2021, 20:25
Re:DIY Starfinder - a lockdown projectHerman Dekker15 Dec 2021, 10:39
Re:DIY Starfinder - a lockdown projectHerman Dekker21 Dec 2021, 08:38
Re: IntroductionHewitt Schlereth13 Jan 2021, 23:23
Re: Introduction and set of HO 214Hewitt Schlereth15 Jan 2021, 18:50
Re: Thomas Sumner & Probus (656 tons)Hewitt Schlereth18 Jan 2021, 21:11
Re: Breaking News....Hewitt Schlereth25 Feb 2021, 21:56
Re: Ken Gebhart obituaryHewitt Schlereth19 May 2021, 19:58
Heath Hezzanith?Hewitt Schlereth13 Jun 2021, 21:28
Re: Heath Hezzanith?Hewitt Schlereth16 Jun 2021, 15:25
Re: Heath Hezzanith?Hewitt Schlereth17 Jun 2021, 21:01
Re: Heath Hezzanith?Hewitt Schlereth17 Jun 2021, 21:06
Re: SolsticeHewitt Schlereth24 Jun 2021, 18:54
Re: A-5 Course and Distance ComputerHewitt Schlereth2 Jul 2021, 18:16
Re: Found sextant at local curiosity shop...Hewitt Schlereth9 Jul 2021, 19:49
Re: ADMIN: internet connection speeds and statusHewitt Schlereth6 Sep 2021, 20:11
Re: Compare Methods: Lat/Lon Near NoonHewitt Schlereth8 Sep 2021, 18:54
Re: Compare Methods: Lat/Lon Near NoonHewitt Schlereth12 Sep 2021, 18:35
Re: Compare Methods: Lat/Lon Near NoonHewitt Schlereth13 Sep 2021, 20:08
Re: Compare Methods: Lat/Lon Near NoonHewitt Schlereth13 Sep 2021, 23:23
Re: The Bajo "Sea Nomads" and the starsHewitt Schlereth5 Nov 2021, 03:58
Ex RNZAF navigator keen to learn marine sextant waysHoward G3 Dec 2021, 06:29
Re: Ex RNZAF navigator keen to learn marine sextant waysHoward G3 Dec 2021, 23:15
Re: Kollsman Aircraft SextantsHoward G9 Dec 2021, 00:44
Re: Kollsman Aircraft SextantsHoward G9 Dec 2021, 01:13
Re: Jack London: author and navigatorHoward G20 Dec 2021, 04:13
Re: Chilean author: future of celestialHoward G21 Dec 2021, 20:43
Re: Chilean author: future of celestialHoward G21 Dec 2021, 22:18
Re: Chilean author: future of celestialHoward G21 Dec 2021, 22:50
Re: Chilean author: future of celestialHoward G22 Dec 2021, 03:03
Re: Bermuda to St Helena on a North Atlantic Mercator ChartHoward G27 Dec 2021, 20:46
Re: Bermuda to St Helena on a North Atlantic Mercator ChartHoward G31 Dec 2021, 00:00
Re: International Date LineHoward G31 Dec 2021, 22:57
Re: Office Hours Ageton ClassicHuub Robroek10 Feb 2021, 15:52
Re: Office Hours Ageton ClassicHuub Robroek10 Feb 2021, 18:44
Re: Office Hours Ageton ClassicHuub Robroek11 Feb 2021, 17:59
Re: Office Hours Ageton ClassicHuub Robroek11 Feb 2021, 19:57
Re: Office Hours Ageton ClassicHuub Robroek11 Feb 2021, 23:23
Re: Push out laser cut plywood models from ChinaHuub Robroek26 Feb 2021, 20:37
Re: Push out laser cut plywood models from ChinaHuub Robroek27 Feb 2021, 21:22
Re: Push out laser cut plywood models from ChinaHuub Robroek1 Mar 2021, 00:15
Shooting my first LunarsHuub Robroek22 Mar 2021, 17:45
Re: Shooting my first LunarsHuub Robroek30 Mar 2021, 23:03
Re: Shooting my first LunarsHuub Robroek3 Apr 2021, 19:52
Re: ADMIN: NavList Operations ContributionsHuub Robroek7 Aug 2021, 21:21
Re: ADMIN: internet connection speeds and statusHuub Robroek7 Sep 2021, 16:11
Re: Celnav.nl is no more? Pity!Huub Robroek5 Dec 2021, 10:02
Re: Celesticomp V instructionsIan Gifford9 Mar 2021, 10:45
Re: Celesticomp V instructionsIan Gifford9 Mar 2021, 17:28
Re: Pub. 249 origins and historyIan Gifford10 May 2021, 09:34
Re: True North and PrecessionIan Vaughn16 Feb 2021, 02:34
Own sextant - always betterIgor S.10 Jan 2021, 22:14
Udemy free course on CNIgor S.19 Feb 2021, 09:47
Re: Push out laser cut plywood models from ChinaIgor S.28 Feb 2021, 21:59
AH: windproof shades materialIgor S.17 Mar 2021, 16:38
Re: AH: windproof shades materialIgor S.18 Mar 2021, 22:52
Re: AH: windproof shades materialIgor S.22 Mar 2021, 23:32
Rare footage of radio sextantIgor S.26 Mar 2021, 21:25
Re: AH: windproof shades materialIgor S.18 May 2021, 13:01
Re: AH: windproof shades materialIgor S.19 May 2021, 23:00
Ukrainian capt. on CNIgor S.20 May 2021, 09:34
Astrolabium & nestIgor S.15 Aug 2021, 13:01
Re: True North and PrecessionJames F Campbell19 Feb 2021, 15:21
Re: Bowditch editions: good and badJames F Campbell19 Feb 2021, 23:36
Re: NY Times article on GPS vulnerabilitiesJames F Campbell19 Mar 2021, 12:44
Re: CN Aboard Commercial FlightJames F Campbell19 May 2021, 12:24
Re: ADMIN: internet connection speeds and statusJames F Campbell6 Sep 2021, 18:10
Hezzanith SextantJan Christian Severin26 Oct 2021, 15:40
Three Oddball SextantsJan D10 Sep 2021, 11:20
Re: Three Oddball SextantsJan D10 Sep 2021, 16:13
Re: Three Oddball SextantsJan D12 Sep 2021, 11:57
Re: Three Oddball SextantsJan D13 Sep 2021, 16:00
Re: Ken Gebhart obituaryJean-Philippe Planas19 May 2021, 05:58
Re: The "ИМС-3": a clone of the SOLD KM2 octantJeffrey Rock13 May 2021, 13:31
Re: The "ИМС-3": a clone of the SOLD KM2 octantJeffrey Rock15 May 2021, 03:43
Re: Air Force One sextant?Jeffrey Rock20 May 2021, 03:20
Re: Moon AmplitudeJeremy C16 Feb 2021, 00:32
Re: Fwd: Announcement of new update American Practical Navigator Pub. 9Jeremy C16 Jul 2021, 13:29
Re: Wired: Phantom Warships Are Courting Chaos in Conflict ZonesJeremy C2 Aug 2021, 08:24
Re: New memberJeremy C11 Aug 2021, 09:17
Re: I think I saw NunkiJeremy C19 Aug 2021, 11:14
Re: Tropical Storm HenriJeremy C24 Aug 2021, 07:26
Re: I think I saw NunkiJeremy C29 Aug 2021, 22:31
Re: ADMIN: internet connection speeds and statusJeremy C7 Sep 2021, 05:08
Re: What is a chronometer?Jeremy C20 Sep 2021, 12:12
Re: IE determination Freiberger Yacht Sextant.Jeremy C27 Sep 2021, 07:40
Re: HiTech scratchpad instead of paper&pencil?Jeremy C27 Sep 2021, 07:44
Re: Time ballsJeremy C30 Sep 2021, 08:07
Celnav in the Yellow SeaJeremy C30 Sep 2021, 09:26
Re: Time ballsJeremy C5 Oct 2021, 09:10
Re: Time ballsJeremy C6 Oct 2021, 10:05
Re: Venus in daylight in southern latitudesJeremy C18 Oct 2021, 20:33
Re: Great circle crossing the Equator on a Mercator's Chart?Jeremy C24 Dec 2021, 23:09
Re: ADMIN: internet connection speeds and statusJim Hickey8 Sep 2021, 12:46
Re: What is a chronometer?Jim Hickey29 Sep 2021, 13:51
Re: Your Earth is too cloudyJim Rives19 Jan 2021, 23:41
True North and PrecessionJim Rives15 Feb 2021, 16:59
Re: True North and PrecessionJim Rives16 Feb 2021, 20:42
Re: True North and PrecessionJim Rives18 Feb 2021, 20:10
Cel Nav SimulatorJim Rives20 Feb 2021, 18:51
Re: Cel Nav SimulatorJim Rives22 Feb 2021, 18:21
Re: Cel Nav SimulatorJim Rives22 Feb 2021, 18:45
Re: Cel Nav SimulatorJim Rives22 Feb 2021, 20:53
Re: Cel Nav SimulatorJim Rives23 Feb 2021, 00:19
Re: Cel Nav SimulatorJim Rives23 Feb 2021, 17:57
Re: Results of the sunclock experimentJim Rives4 Jun 2021, 11:02
Hadley Quadrant - Gilbert - Tower on the Hill - 1771Jim Rives19 Jun 2021, 14:34
Re: Latitude and longitude by birdfootJim Rives20 Dec 2021, 14:52
Re: Latitude and longitude by birdfootJim Rives21 Dec 2021, 03:46
Re: Patrick O'Brian characters discuss time and longitudeJim Sergovic14 Jan 2021, 23:44
Bowditch 2019 Sucksjoe ben19 Feb 2021, 09:55
Re: Calculate GHA Aries in your headJohn Baum1 Mar 2021, 17:40
Re: Mathew Flinders Charts.John Brown8 Apr 2021, 04:21
NOAA Competition: MagNet: Model the Geomagnetic FieldJohn Carbone26 Jan 2021, 14:01
U.S. Navy Declares Gps Obsolete, Celestial The FutureJohn Carbone1 Apr 2021, 12:15
Re: Ken Gebhart obituaryJohn Carbone18 May 2021, 18:38
Checking Cargo Ship Compass Error With The Sun Life At Sea videoJohn Carbone27 Jul 2021, 13:41
Re: ADMIN: internet connection speeds and statusJohn Carbone6 Sep 2021, 17:23
Frank’s On Line Celestial Navigation Courses … heartily endorsed!John Carbone13 Sep 2021, 14:07
Willmann-Bell closed?John Clements9 Jan 2021, 21:54
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?John Clements29 Jan 2021, 19:33
Re: C Plath YachtsmanJohn Clements15 Feb 2021, 20:17
Re: Cel Nav SimulatorJohn Clements21 Feb 2021, 07:31
Re: Telemeter/QuadrantJohn Clements25 Mar 2021, 22:50
Re: Altitude with artificial horizonJohn Clements21 May 2021, 17:27
Re: Practice Problems for Tables Methods?John Clements2 Jun 2021, 01:16
Re: New memberJohn Clements11 Aug 2021, 02:29
Re: Willmann-Bell astronomical publicationsJohn Clements20 Aug 2021, 14:11
Re: Online celestial navigation classes scheduled for FallJohn Clements1 Sep 2021, 16:00
Re: $5 celestial navigation books at your libraryJohn Clements6 Sep 2021, 15:13
Re: Sextant square drive screw toolJohn Clements9 Sep 2021, 15:53
Re: Sky and Telescope in freefallJohn Clements24 Oct 2021, 00:05
Re: The Three-body ProblemJohn Clements25 Oct 2021, 04:59
Re: The Three-body ProblemJohn Clements26 Oct 2021, 01:41
Re: The Three-body ProblemJohn Clements27 Oct 2021, 15:08
Re: Tomorrow is Sun fast dayJohn Clements4 Nov 2021, 06:00
Re: Celnav.nl is no more? Pity!John Clements2 Dec 2021, 18:53
Re: Off topic - Fatality /morejohn deam27 May 2021, 20:49
Flight Surgeon death aboard KC-135Ajohn deam27 May 2021, 21:18
Re: Universal Plotting Sheet and Weir diagramJohn Niven23 May 2021, 19:10
Re: Degree sign in WindowsJohn Niven7 Aug 2021, 09:32
Re: Degree sign in WindowsJohn Niven7 Aug 2021, 16:37
Re: Degree sign in WindowsJohn Niven8 Aug 2021, 18:42
Re: Degree sign in WindowsJohn Niven8 Aug 2021, 20:51
Re: DR with traverse tablesJohn Niven12 Nov 2021, 10:02
NASR question on large F valuesJohn Pinto21 May 2021, 10:06
Re: NASR question on large F valuesJohn Pinto21 May 2021, 19:41
Re: NASR question on large F valuesJohn Pinto22 May 2021, 02:37
Re: NASR question on large F valuesJohn Pinto27 May 2021, 23:47
Re: NASR question on large F valuesJohn Pinto3 Jun 2021, 20:52
Naval Observatory website changeJohn Pinto3 Jun 2021, 20:55
Re: International star name pronunciationsJohn Pinto22 Jun 2021, 08:51
John Karl contact info?John Pinto11 Jul 2021, 16:27
HO 249 Volume 1 Selected Stars Epoch 2000John Pinto16 Jul 2021, 22:13
Re: HO 249 Volume 1 Selected Stars Epoch 2000John Pinto17 Jul 2021, 12:30
Re: HO 249 Volume 1 Selected Stars Epoch 2000John Pinto17 Jul 2021, 12:31
StarFinder EpochJohn Pinto27 Jul 2021, 17:30
Re: StarFinder EpochJohn Pinto14 Sep 2021, 18:54
HO 214 HistoryJohn Pinto29 Oct 2021, 17:44
Re: HO 214 HistoryJohn Pinto30 Oct 2021, 11:39
Re: HO 214 HistoryJohn Pinto2 Nov 2021, 14:45
Re: Old Sextant - Charles HutchinsonJohn Rizzuto14 Jan 2021, 15:40
M. Low USN MKIII MOD-0 - Illumination issueJohn Rizzuto20 Jan 2021, 22:55
Re: Celesticomp V instructionsJohn Rizzuto9 Mar 2021, 14:05
Re: Chilean author: future of celestialJohn Rizzuto21 Dec 2021, 21:52
Fulford Nav Collection - Upcoming Estate SaleJohn Turanin13 Apr 2021, 23:18
Fulford Estate Collection - Online Auction Apr22-25John Turanin22 Apr 2021, 00:07
Re: Help required with a sunclock experimentJoseph Rheubeck3 Jun 2021, 15:09
Calculate GHA Aries in your headJoshua Hunley1 Mar 2021, 17:02
Re: Calculate GHA Aries in your headJoshua Hunley1 Mar 2021, 18:12
Re: Calculate GHA Aries/Some updates for web appsJoshua Hunley2 Mar 2021, 20:44
Re: Calculate GHA Aries in your headJoshua Hunley2 Mar 2021, 21:28
Re: Calculate GHA Aries in your headJoshua Hunley3 Mar 2021, 21:23
Re: Calculate the declination of the Sun in your headJoshua Hunley4 Mar 2021, 02:31
Re: Calculate the declination of the Sun in your headJoshua Hunley4 Mar 2021, 02:53
Re: Calculate GHA Aries/Some updates for web appsJoshua Hunley5 Mar 2021, 19:42
DRAFT of 'A Perpetual Almanac for the Sun and Stars 2020-2050' (Using difference tables)Joshua Hunley7 Mar 2021, 17:01
Re: A10 bubble sextant bulb holderJoshua Hunley7 Mar 2021, 17:24
Re: Silvering mirrors with mercury-tin amalgamJürgen Hoefeld20 Mar 2021, 17:06
Re: Do you recognize this?Jürgen Hoefeld17 May 2021, 06:02
Re: ADMIN: internet connection speeds and statusJürgen Hoefeld6 Sep 2021, 17:30
A10 bubble sextant bulb holderK McGrath7 Mar 2021, 10:37
Re: Digital SextantKen Gebhart13 Jan 2021, 17:19
Re: Breaking News....Ken Gebhart24 Feb 2021, 03:00
Re: What is a naut?Ken Muldrew2 Feb 2021, 14:41
Re: John Wesley Powell River History MuseumKen Muldrew30 Oct 2021, 01:08
Re: Azimuth computation formula in Pub. 229Lars Bergman17 Jan 2021, 11:11
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Lars Bergman21 Feb 2021, 15:30
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Lars Bergman22 Feb 2021, 11:29
Re: Another surveying problemLars Bergman2 Mar 2021, 15:38
Re: Surveying problemLars Bergman2 Mar 2021, 19:59
Re: Another surveying problemLars Bergman3 Mar 2021, 22:31
Re: Silvering mirrors with mercury-tin amalgamLars Bergman20 Mar 2021, 11:08
Re: Shooting my first LunarsLars Bergman3 Apr 2021, 13:47
Re: Time Sight and Ex-Meridian by BygraveLars Bergman7 Apr 2021, 21:27
Re: Contrail and Aircraft distanceLars Bergman12 Oct 2021, 17:29
A day's work in 1937 onboard the barque AlastorLars Bergman23 Oct 2021, 14:31
Re: Calculate new coordinates given bearing and distance?Lars Bergman1 Nov 2021, 22:16
Re: Calculate new coordinates given bearing and distance?Lars Bergman2 Nov 2021, 20:35
Re: Calculate new coordinates given bearing and distance?Lars Bergman2 Nov 2021, 21:01
Re: Calculate new coordinates given bearing and distance?Lars Bergman4 Nov 2021, 21:43
Re: Calculate new coordinates given bearing and distance?Lars Bergman6 Nov 2021, 16:19
DR with traverse tablesLars Bergman7 Nov 2021, 16:56
Re: DR with traverse tablesLars Bergman8 Nov 2021, 13:41
Re: AM and PM time sightsLars Bergman10 Nov 2021, 12:04
Re: DR with traverse tablesLars Bergman11 Nov 2021, 20:14
Re: Practical Haversine UseLars Bergman16 Nov 2021, 18:30
Re: Practical Haversine Use (with logs)Lars Bergman17 Nov 2021, 21:38
A day's work in 1937 onboard the barque Alastor, revisitedLars Bergman30 Nov 2021, 11:54
Re: A day's work in 1937 onboard the barque Alastor, revisitedLars Bergman5 Dec 2021, 21:23
Re: A day's work in 1937 onboard the barque Alastor, revisitedLars Bergman10 Dec 2021, 13:05
Re: A day's work in 1937 onboard the barque Alastor, revisitedLars Bergman13 Dec 2021, 09:13
Re: Bermuda to St Helena on a North Atlantic Mercator ChartLars Bergman29 Dec 2021, 18:31
One of the silliest articles I've read on map projectionsLu Abel25 Feb 2021, 18:33
Re: DipLu Abel5 Mar 2021, 17:38
Now all we need to do is to put scents on navigation aidsLu Abel6 Mar 2021, 00:28
NY Times article on GPS vulnerabilitiesLu Abel18 Mar 2021, 16:14
Re: U.S. Navy Declares Gps Obsolete, Celestial The FutureLu Abel2 Apr 2021, 16:07
Re: Air Force One sextant?Lu Abel19 May 2021, 23:26
Re: Compare Methods: Lat/Lon Near NoonLuc Desmedt8 Sep 2021, 11:11
Re: Compare Methods: Lat/Lon Near NoonLuc Desmedt8 Sep 2021, 18:54
Online celestial navigation seminar by Margaret E. Schotte tomorrowLuc Van den Borre23 Feb 2021, 15:08
Re: Any experience with a C&P "Special" sextant?Luc Van den Borre10 Nov 2021, 20:10
Re: Kollsman periscopic sextant mountLuis A. Loeff10 Jun 2021, 19:06
Re: Breaking News....Manuel Cruz23 Feb 2021, 15:54
Re: When and where is the Solstice today?Manuel Cruz21 Dec 2021, 05:30
Re: HO 249 Volume 1 Selected Stars Epoch 2000Marcelo S17 Jul 2021, 02:30
Three GPS data comparison: All different. Huh?Mark Coady24 May 2021, 17:55
Re: The Three-body ProblemMartin Whittle25 Oct 2021, 12:33
Re: Surveying problemMarty Lyons23 Feb 2021, 16:17
Re: Surveying problemMarty Lyons25 Feb 2021, 01:17
Astron 1.15 integration in my nav log.Mats Hjorter30 Oct 2021, 15:10
Re: Astron 1.15 integration in my nav log.Mats Hjorter1 Nov 2021, 22:25
Re: Ex RNZAF navigator keen to learn marine sextant waysMatthew G. Ashbrook4 Dec 2021, 13:47
Re: Ex RNZAF navigator keen to learn marine sextant waysMatthew G. Ashbrook7 Dec 2021, 14:53
Re: How many ways to define a day?Matus Tejiscak12 Jun 2021, 11:44
Re: How many ways to define a day?Matus Tejiscak16 Jun 2021, 23:06
Re: Milky Way photo navigation challengeMatus Tejiscak28 Jun 2021, 23:02
Re: Selling an A-12 bubble sextantMatus Tejiscak12 Jul 2021, 15:35
Re: An azimuth formula that works everywhere? Even on poles?Matus Tejiscak22 Jul 2021, 09:31
Re: Finding IC for A-12 bubble sextantsMatus Tejiscak9 Oct 2021, 20:53
Re: Problem Practice (group project)max mulhern4 Jun 2021, 18:16
Re: Problem Practice (group project)max mulhern4 Jun 2021, 19:24
Re: Royal Observatory workshopMichael Bradley4 Jan 2021, 21:25
Re: Running down an Astro-Position LineMichael Bradley14 Mar 2021, 21:52
Re: Running down an Astro-Position LineMichael Bradley17 Mar 2021, 09:33
Dawn Sight For MinimalistsMichael Bradley2 Jul 2021, 20:51
Re: 1946 US Coast Guard SextantMichael Cain30 Jan 2021, 01:42
Re: Plath certificate: drop of solderMichael Cain2 Feb 2021, 20:16
Re: Plath certificate: drop of solderMichael Cain5 Feb 2021, 16:16
Re: Plath certificate: drop of solderMichael Cain6 Feb 2021, 19:04
Re: A Plath Sextant listed for sale with an odd eye pieceMichael Cain7 Feb 2021, 16:05
Re: Plath certificate: drop of solderMichael Cain7 Feb 2021, 20:55
Re: C Plath YachtsmanMichael Cain15 Feb 2021, 20:38
Re: Ken Gebhart obituaryMichael Cain18 May 2021, 18:56
Re: Help required with a sunclock experimentMichael Cain2 Jun 2021, 19:12
Re: What is a chronometer?Michael Cain19 Sep 2021, 19:06
Re: CP-300/U USAF Star FinderMichalis Vaidanis8 Feb 2021, 21:29
Re: CP-300/U USAF Star FinderMichalis Vaidanis9 Feb 2021, 19:28
Re: CP-300/U USAF Star FinderMichalis Vaidanis10 Feb 2021, 15:01
Re: On this CP-300\U, recently discussed.Michalis Vaidanis12 Feb 2021, 23:02
2102-D and CP-300/U starfinder altitude/azimuth grid projectionMichalis Vaidanis23 Feb 2021, 22:06
Re: DIY Starfinder - a lockdown projectMichalis Vaidanis6 Mar 2021, 19:55
Re: DIY Starfinder - a lockdown projectMichalis Vaidanis16 Mar 2021, 19:35
Maneuvering BoardMichalis Vaidanis22 Dec 2021, 22:32
Re: CN - quick reference cardMike Burkes3 Feb 2021, 14:18
Surveying problemMike Burkes23 Feb 2021, 15:14
Surveying problemMike Burkes23 Feb 2021, 16:52
Re: Surveying problemMike Burkes23 Feb 2021, 17:30
Re: Surveying problemMike Burkes25 Feb 2021, 12:14
Re: Surveying problemMike Burkes25 Feb 2021, 12:22
Re: Surveying problemMike Burkes25 Feb 2021, 16:55
Re: Surveying problemMike Burkes25 Feb 2021, 17:02
Re: Surveying problemMike Burkes26 Feb 2021, 15:34
Another surveying problemMike Burkes26 Feb 2021, 16:24
Re: Another surveying problemMike Burkes26 Feb 2021, 21:43
Re: Another surveying problemMike Burkes2 Mar 2021, 18:24
Re: Wind Velocity from Three DriftsMike Burkes2 Mar 2021, 18:43
Re: Surveying problemMike Burkes3 Mar 2021, 13:12
Re: Simex sextantMike Burkes29 Apr 2021, 02:32
MapQuest and Google Maps geographic coordinatesMike Burkes12 May 2021, 13:21
Re: Stereographic Projection of the EclipticMike Mayer15 Feb 2021, 13:22
Military GPS Jamming Affects Commercial Aircraft (IEEE Spectrum)Mike Mayer5 Mar 2021, 20:31
Non-navigational Star coordinatesModris Fersters3 Mar 2021, 18:05
Re: Non-navigational Star coordinatesModris Fersters5 Mar 2021, 09:02
Re: Non-navigational Star coordinatesModris Fersters6 Mar 2021, 12:42
Re: Non-navigational Star coordinatesModris Fersters7 Mar 2021, 17:29
Re: AH: windproof shades materialModris Fersters17 Mar 2021, 19:19
Re: AH: windproof shades materialModris Fersters20 Mar 2021, 14:57
Re: Non-navigational Star coordinatesModris Fersters28 Mar 2021, 18:58
Re: AH: windproof shades materialModris Fersters18 May 2021, 18:41
Sextant experimentModris Fersters12 Jun 2021, 14:34
Re: Sextant experimentModris Fersters13 Jun 2021, 20:34
Re: Sextant experimentModris Fersters18 Jun 2021, 14:00
Re: Sextant experimentModris Fersters27 Jul 2021, 18:58
John Franklin lunar from 1818 and Mendoza y Rios methodModris Fersters31 Jul 2021, 16:04
Re: John Franklin lunar from 1818 and Mendoza y Rios methodModris Fersters1 Aug 2021, 14:02
Altitude accuracy effect on cleared lunar distanceModris Fersters1 Aug 2021, 14:30
Re: Altitude accuracy effect on cleared lunar distanceModris Fersters1 Aug 2021, 17:05
Re: IE determination Freiberger Yacht Sextant.Modris Fersters26 Sep 2021, 20:12
Re: Bridge sextantsMurray Buckman8 Jan 2021, 00:06
Re: Bridge sextantsMurray Buckman8 Jan 2021, 00:26
Re: Simex sextantMurray Buckman26 Apr 2021, 16:56
Re: Golden Globe Race -- how would you detect cheating?Murray Buckman28 Apr 2021, 17:37
Re: Silvering mirrors with mercury-tin amalgamMurray Buckman7 May 2021, 14:13
Re: Problem Practice (group project)Murray Buckman4 Jun 2021, 21:55
Re: Milky Way photo navigation challengeMurray Buckman27 Jun 2021, 22:24
Re: $5 celestial navigation books at your libraryMurray Buckman7 Sep 2021, 23:25
Re: Terminology: somethingMadeGood vs somethingOverGround?Murray Buckman16 Sep 2021, 21:02
Re: HiTech scratchpad instead of paper&pencil?Murray Buckman21 Sep 2021, 15:40
Re: Time ballsMurray Buckman5 Oct 2021, 22:26
Re: Freiberger Yacht Sextant Case Mod.Murray Buckman17 Oct 2021, 17:08
Morning starMurray Buckman14 Dec 2021, 02:56
Re: Morning starMurray Buckman14 Dec 2021, 16:55
Re: Excel AlmanacMurray Peake7 Jan 2021, 23:36
Re: Silvering mirrors with mercury-tin amalgamMurray Peake20 Mar 2021, 07:52
Re: Matthew Flinders ChartsMurray Peake4 Apr 2021, 07:27
Re: ADMIN: internet connection speeds and statusMurray Peake6 Sep 2021, 20:44
Re: The Three-body ProblemMurray Peake27 Oct 2021, 10:50
Re: The Nautical Sextant bookMurray Peake8 Nov 2021, 09:03
Re: DR with traverse tablesMurray Peake11 Nov 2021, 20:00
Re: Bare essentialsMurray Peake22 Nov 2021, 16:11
Re: Bare essentialsMurray Peake23 Nov 2021, 16:17
Re: For which celestial bodies is it relevant to display the lunar distance?Murray Peake4 Dec 2021, 11:05
Where is the Prime Meridian?Murray Peake10 Dec 2021, 19:12
Re: Where is the Prime Meridian?Murray Peake10 Dec 2021, 20:32
Re: Where is the Prime Meridian?Murray Peake11 Dec 2021, 09:22
Re: Where is the Prime Meridian?Murray Peake11 Dec 2021, 15:36
Re: Where is the Prime Meridian?Murray Peake11 Dec 2021, 15:39
Re: DipNick M8 Mar 2021, 04:12
Re: Silvering mirrors with mercury-tin amalgamNick M20 Mar 2021, 13:17
Re: Problem Practice (group project)Nick M3 Jun 2021, 21:01
Re: An interesting series of Navigation Books by the same authorNick M25 Nov 2021, 19:58
Cosmic Ray Muons Not GPS SatellitesNick M27 Nov 2021, 14:46
A-10 Bubble Sextant AssemblyNoell Wilson23 Jan 2021, 20:25
Re: A-10 Bubble Sextant AssemblyNoell Wilson24 Jan 2021, 18:58
Re: Davis WorksheetsNoell Wilson14 Mar 2021, 16:59
C & P sextantNoell Wilson1 May 2021, 12:11
Re: Celestial Navigation article in Popular MechanicsNoell Wilson1 May 2021, 13:01
Re: Bill Morris' MHR1 reproductionNoell Wilson18 Jun 2021, 15:02
Re: Recording sextant (maybe octant)?Noell Wilson11 Jul 2021, 13:53
Re: A-12 Bubble Sextant (Octant)Noell Wilson11 Aug 2021, 16:41
Re: Dummy Batteries for an A12Noell Wilson14 Aug 2021, 23:21
Re: Dummy Batteries for an A12Noell Wilson22 Aug 2021, 16:52
Re: Dummy Batteries for an A12Noell Wilson4 Sep 2021, 15:56
Sextant square drive screw toolNoell Wilson9 Sep 2021, 14:50
Re: Sextant square drive screw toolNoell Wilson15 Sep 2021, 19:55
Re: A12 bubble chamberNoell Wilson23 Sep 2021, 15:57
Re: Status of USNO's Celestial Navigation Data web siteNoell Wilson30 Sep 2021, 17:15
Pacific Northwest dumped on - againNoell Wilson24 Oct 2021, 10:38
Re: Sextant in an award-winning French filmNoell Wilson28 Oct 2021, 00:54
Re: A10 sextant for saleNoell Wilson15 Dec 2021, 17:27
Re: Celnav.nl is no more? Pity!Oz DiGennaro3 Dec 2021, 22:19
Re: My first posts are legally adults todayOz DiGennaro4 Dec 2021, 00:19
Re: A10 sextant for saleOz DiGennaro14 Dec 2021, 00:38
Re: Coast Navigation SchoolPatrick Barclay1 Jun 2021, 01:27
1950s C Plath sextantPatrick Dickie15 Feb 2021, 03:08
Re: 1950s C Plath sextantPatrick Dickie15 Feb 2021, 17:24
Re: 1950s C Plath sextantPatrick Dickie16 Feb 2021, 00:13
Re: 1950s C Plath sextantPatrick Dickie17 Feb 2021, 03:50
Re: Bare essentialsPatrick Dickie23 Nov 2021, 20:44
Re: New Soviet era sextant SNO-TPaul Bedel12 May 2021, 13:20
Re: Davis MK15 light mod possible?Paul Dolkas20 Apr 2021, 05:07
Re: Davis MK15 light mod possible?Paul Dolkas23 Apr 2021, 16:07
Re: Davis MK15 light mod possible?Paul Dolkas8 Jul 2021, 05:45
Re: Davis MK15 light mod possible?Paul Dolkas12 Jul 2021, 03:44
Re: Davis MK15 light mod possible?Paul Dolkas29 Jul 2021, 04:18
Re: Davis MK15 light mod possible?Paul Dolkas1 Sep 2021, 04:58
Re: A12 bubble chamberPaul Dolkas17 Sep 2021, 04:34
Space station sextant returned to EarthPaul Hirose16 Jan 2021, 22:03
Re: Non-navigational Star coordinatesPaul Hirose6 Mar 2021, 18:28
Re: A Diy E6-B?Paul Hirose14 Apr 2021, 00:00
Re: My Kollsman sextant.Paul Hirose19 Jun 2021, 20:56
Re: Uk dataPaul Hirose28 Jun 2021, 05:30
Re: Moonrise-over-ConnecticutPaul Hirose6 Nov 2021, 21:28
Re: Moonrise-over-ConnecticutPaul Hirose8 Nov 2021, 07:11
Re: Kollsman electronic averager powerPaul Hirose18 Nov 2021, 17:44
Re: Problem Practice (group project)Paul Jackson3 Jun 2021, 12:08
Re: Venus in daylight in southern latitudesPaul Jackson18 Oct 2021, 04:26
Re: Chilean author: future of celestialPaul Jackson22 Dec 2021, 00:17
Re: A Plath Sextant listed for sale with an odd eye piecePaul Saffo8 Feb 2021, 20:16
Re: A Plath Sextant listed for sale with an odd eye piecePaul Saffo8 Feb 2021, 20:26
Re: A Plath Sextant listed for sale with an odd eye piecePaul Saffo11 Feb 2021, 00:31
Telemeter/QuadrantPaul Saffo25 Mar 2021, 17:37
Re: Telemeter/QuadrantPaul Saffo28 Mar 2021, 18:10
Galilean eyepiece description?Paul Saffo23 Apr 2021, 21:41
Re: Galilean eyepiece description?Paul Saffo24 Apr 2021, 19:51
Re: Galilean eyepiece description?Paul Saffo25 Apr 2021, 20:53
Relativistic interstellar navigation (or how to avoid getting Lost in Space!)Paul Saffo3 Jun 2021, 18:26
Re: SolsticePaul Saffo21 Jun 2021, 04:05
Wired: Phantom Warships Are Courting Chaos in Conflict ZonesPaul Saffo1 Aug 2021, 12:54
Re: ADMIN: internet connection speeds and statusPaul Saffo7 Sep 2021, 13:01
What every Navlister needs in their study!Paul Saffo15 Sep 2021, 17:38
You need these for your study!Paul Saffo19 Sep 2021, 00:35
Re: Lindbergh-Weems Second-Setting P ilot ’s Watch - Updated PaperPaul Saffo14 Nov 2021, 04:33
Re: Sun Slow DayPaul Werner10 Feb 2021, 22:06
Re: Non-navigational Star coordinatesPeter Blaskett27 Mar 2021, 21:27
Matthew Flinders ChartsPeter Blaskett4 Apr 2021, 01:10
Re: Matthew Flinders ChartsPeter Blaskett7 Apr 2021, 04:26
Re: Matthew Flinders ChartsPeter Blaskett8 Apr 2021, 06:33
Re: Mathew Flinders Charts.Peter Blaskett8 Apr 2021, 20:05
Re:Moonrise-over-ConnecticutPeter Blaskett1 Nov 2021, 21:47
Re:Moonrise-over-ConnecticutPeter Blaskett2 Nov 2021, 19:44
Re:Moonrise-over-ConnecticutPeter Blaskett2 Nov 2021, 20:00
Re:Moonrise-over-ConnecticutPeter Blaskett4 Nov 2021, 04:59
Re:Moonrise-over-ConnecticutPeter Blaskett5 Nov 2021, 20:30
Re: Moonrise-over-ConnecticutPeter Blaskett11 Nov 2021, 01:38
Re: International star name pronunciationsPeter Hakel21 Jun 2021, 02:35
Re: A-5 Course and Distance ComputerPeter Hakel29 Jun 2021, 13:18
Re: Compare Methods: Lat/Lon Near NoonPeter Hakel28 Aug 2021, 18:15
Re: Compare Methods: Lat/Lon Near NoonPeter Hakel2 Oct 2021, 15:51
Re: Compare Methods: Lat/Lon Near NoonPeter Hakel6 Oct 2021, 00:02
Navigation Spreadsheets in 2022Peter Hakel14 Nov 2021, 16:16
Re: Navigation Spreadsheets in 2022Peter Hakel14 Nov 2021, 18:30
Re: EoT Curve calculated by VBPeter Hakel24 Nov 2021, 00:01
Re: Navigation Spreadsheets in 2022Peter Hakel26 Nov 2021, 18:19
Re: Navigation Spreadsheets in 2022Peter Hakel26 Nov 2021, 21:51
Re: Great circle crossing the Equator on a Mercator's Chart?Peter Hakel24 Dec 2021, 04:41
Re: Bermuda to St Helena on a North Atlantic Mercator ChartPeter Hakel24 Dec 2021, 21:21
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Peter Monta29 Jan 2021, 21:19
Sextant calibration accessoryPeter Monta25 Feb 2021, 22:26
Re: Sextant calibration accessoryPeter Monta26 Feb 2021, 00:44
Re: Sextant calibration accessoryPeter Monta27 Feb 2021, 05:07
Re: Sextant calibration accessoryPeter Monta28 Feb 2021, 03:05
Re: Sextant calibration accessoryPeter Monta28 Feb 2021, 03:09
Interstellar navigation with astrometryPeter Monta23 Mar 2021, 19:42
Re: Galilean eyepiece description?Peter Monta23 Apr 2021, 23:25
Re: Galilean eyepiece description?Peter Monta25 Apr 2021, 11:28
Re: Results of the sunclock experimentPeter Monta5 Jun 2021, 05:30
Re: Results of the sunclock experimentPeter Monta5 Jun 2021, 15:09
Re: Shade needs to be glued back in on C+P sextantPeter Monta5 Jun 2021, 21:11
Re: Sextant experimentPeter Monta13 Jun 2021, 13:38
Re: How many ways to define a day?Peter Monta14 Jun 2021, 14:06
Re: Sextant experimentPeter Monta17 Jun 2021, 20:12
Re: Dip from the deep blue originPeter Monta20 Jul 2021, 15:37
Re: Sextant experimentPeter Monta26 Jul 2021, 00:30
Re: Sextant experimentPeter Monta27 Jul 2021, 20:46
Re: Willmann-Bell astronomical publicationsPeter Monta20 Aug 2021, 03:52
Re: IE determination Freiberger Yacht Sextant.Peter Monta26 Sep 2021, 16:54
Re: An instant value vs an integrated one?Peter Monta10 Oct 2021, 05:21
Re: An instant value vs an integrated one?Peter Monta10 Oct 2021, 05:33
Re: The Three-body ProblemPeter Monta25 Oct 2021, 22:46
Re: The Three-body ProblemPeter Monta28 Oct 2021, 15:57
Re: HO 214 HistoryPeter Monta30 Oct 2021, 04:01
Re: Cosmic Ray Muons Not GPS SatellitesPeter Monta27 Nov 2021, 20:34
Re: Tropical Storm HenriPeter Smith26 Aug 2021, 15:23
Re: ADMIN: internet connection speeds and statusPeter Smith8 Sep 2021, 20:52
2102D improvementsPhilippe Posth13 May 2021, 08:50
Re: 2102D improvementsPhilippe Posth14 May 2021, 10:33
How to put a mirror spring in place ?Philippe Posth3 Nov 2021, 10:32
Re: How to put a mirror spring in place ?Philippe Posth5 Nov 2021, 17:58
International Date LinePhilippe Posth5 Dec 2021, 08:20
Re: IntroductionR William McAllister14 Jan 2021, 07:07
Re: IntroductionR William McAllister14 Jan 2021, 15:54
Azimuth computation formula in Pub. 229Rafael C. Caruso16 Jan 2021, 22:20
Re: Azimuth computation formula in Pub. 229Rafael C. Caruso17 Jan 2021, 17:35
Re: Azimuth computation formula in Pub. 229Rafael C. Caruso17 Jan 2021, 17:35
Re: Sun's Blue and Golden HoursRafael C. Caruso15 Feb 2021, 17:22
Bowditch editions: good and badRafael C. Caruso19 Feb 2021, 23:29
Re: Bowditch editions: good and badRafael C. Caruso20 Feb 2021, 17:29
Re: Rare alignment of annual phenomenaRafael C. Caruso10 Mar 2021, 23:59
Re: The Ancient Greek Antikythera MechanismRafael C. Caruso13 Mar 2021, 17:20
Kaster SpherantRafael C. Caruso22 Apr 2021, 17:25
Re: Willmann-Bell astronomical publicationsRafael C. Caruso20 Aug 2021, 20:26
Re: ADMIN: internet connection speeds and statusRafael C. Caruso8 Sep 2021, 21:54
Re: Sextant frame design- Who won?Rafael C. Caruso5 Nov 2021, 19:17
Re: An interesting series of Navigation Books by the same authorRafael C. Caruso25 Nov 2021, 21:08
Re: Negative leap second?Richard B. Langley6 Jan 2021, 14:25
ION PTTI/ITM Plenary Session PresentationsRichard B. Langley1 Feb 2021, 21:37
IERS Message: New release of the IAU SOFA software libraryRichard B. Langley24 Feb 2021, 21:00
Prince Philip championed GPS as Master of Trinity HouseRichard B. Langley16 Apr 2021, 01:56
IntroductionRichard Toohey13 Jan 2021, 18:58
Re: IntroductionRichard Toohey13 Jan 2021, 20:39
Re: IntroductionRichard Toohey14 Jan 2021, 00:53
Re: IntroductionRichard Toohey14 Jan 2021, 00:57
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacRichard Toohey14 Jan 2021, 01:48
Re: IntroductionRichard Toohey14 Jan 2021, 23:27
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacRichard Toohey16 Jan 2021, 11:33
Re: Online Office Hours: 6pm EST (2300 UT) Practical LunarsRichard Toohey14 Feb 2021, 21:19
Sextant double reflection: angles halvedRichard Toohey15 Feb 2021, 14:29
Re: 1950s C Plath sextantRichard Toohey15 Feb 2021, 15:14
Re: Online Office Hours: 6pm EST (2300 UT) Practical LunarsRichard Toohey15 Feb 2021, 21:35
Re: Sextant double reflection: angles halvedRichard Toohey15 Feb 2021, 23:26
Re: Sextant double reflection: angles halvedRichard Toohey16 Feb 2021, 11:51
Re: Sextant double reflection: angles halvedRichard Toohey16 Feb 2021, 20:31
Re: Bowditch 2019 SucksRichard Toohey20 Feb 2021, 01:59
Re: ADMIN: NavList Operations ContributionsRichard Toohey6 Aug 2021, 00:27
Re: ADMIN: internet connection speeds and statusRichard Toohey6 Sep 2021, 19:04
Re: Another surveying problemRobert Bernecky3 Mar 2021, 15:22
Re: NY Times Article on GPSRobert Goldberg24 Jan 2021, 19:15
Re: Obscure Nautical Almanac starRobert H. van Gent3 Jan 2021, 13:01
Re: Charles H Cotter's PhD ThesisRobert H. van Gent28 Apr 2021, 08:35
Re: Milky Way photo navigation challengeRobert H. van Gent27 Jun 2021, 21:19
Observational TwilightRobert H. van Gent5 Jul 2021, 10:23
Re: Observational TwilightRobert H. van Gent5 Jul 2021, 19:48
Re: ADMIN: internet connection speeds and statusRobert Neff7 Sep 2021, 13:55
Reconditioning SextantsRobert Swartz4 Jan 2021, 04:11
RE. Kollsman MA2 SextantRobert Swartz16 Jan 2021, 06:08
Kollsman Sextants' NomenclatureRobert Swartz16 Jan 2021, 06:28
Kollsman D1 Periscopic Sextant with mountRobert Swartz16 Jan 2021, 06:39
Reconditioned Link A-12 Aircraft Bubble Sextant For SaleRobert Swartz23 Jan 2021, 21:35
Re: NY Times Article on GPSRobert Swartz25 Jan 2021, 16:43
Re: Eye cup for my sextantRobert Swartz28 Jan 2021, 02:00
Link A-12 Aircraft Bubble Sextant Reconditioned--F.S.Robert Swartz5 Mar 2021, 00:27
Bausch and Lomb A8-A Aircraft bubble sextant F.S.Robert Swartz19 Mar 2021, 02:48
Reconditioned Link A-12 Sextant F.S.Robert Swartz3 May 2021, 06:10
Re: Selling an A-12 bubble sextantRobert Swartz18 Jul 2021, 00:53
Link A-12 Sextant For SaleRobert Swartz9 Sep 2021, 05:20
Re: Link A-12 Sextant For SaleRobert Swartz12 Sep 2021, 01:09
Working Aircraft Bubble Sextants For SaleRobert Swartz2 Nov 2021, 06:18
RE. Spare A8-A Bubble ChamberRobert Swartz11 Nov 2021, 03:27
Kollsman Aircraft SextantsRobert Swartz3 Dec 2021, 02:31
Kollsman Sextant--Correction on AveragersRobert Swartz3 Dec 2021, 20:46
Re: Kollsman Aircraft SextantsRobert Swartz7 Dec 2021, 14:07
Re: Kollsman Aircraft SextantsRobert Swartz7 Dec 2021, 22:52
A-12 Sextant For Sale--Reconditioned and OperationalRobert Swartz14 Dec 2021, 17:50
Re: A10 sextant for saleRobert Swartz14 Dec 2021, 17:54
Re: IntroductionRobert VanderPol II14 Jan 2021, 00:37
Re: Old Sextant - Charles HutchinsonRobert VanderPol II14 Jan 2021, 00:44
Re: IntroductionRobert VanderPol II14 Jan 2021, 13:18
Re: 1946 US Coast Guard SextantRobert VanderPol II30 Jan 2021, 20:46
Re: DIY Starfinder - a lockdown projectRobert VanderPol II3 Mar 2021, 03:37
Re: Air Force One sextant?Robert VanderPol II20 May 2021, 03:09
Re: London hospital employs internal navigationRobert VanderPol II25 May 2021, 22:10
Re: New memberRobert VanderPol II10 Aug 2021, 17:06
Re: J S Letcher and LunarsRobert VanderPol II9 Sep 2021, 02:37
Re: The Three-body ProblemRobert VanderPol II27 Oct 2021, 04:05
Re: The Three-body ProblemRobert VanderPol II27 Oct 2021, 13:28
Re: My first posts are legally adults todayRobert VanderPol II4 Dec 2021, 04:42
Re:DIY Starfinder - a lockdown projectRobert VanderPol II19 Dec 2021, 11:49
Re:DIY Starfinder - a lockdown projectRobert VanderPol II23 Dec 2021, 21:37
Re:DIY Starfinder - a lockdown projectRobert VanderPol II24 Dec 2021, 06:18
Re: Obscure Nautical Almanac starRobin Stuart1 Jan 2021, 13:54
Re: Obscure Nautical Almanac starRobin Stuart1 Jan 2021, 19:53
Re: Obscure Nautical Almanac starRobin Stuart2 Jan 2021, 20:01
Re: Stereographic Projection of the EclipticRobin Stuart15 Feb 2021, 13:22
Re: Bill Morris' MHR1 reproductionRobin Stuart16 Jun 2021, 13:47
Re: Prob 1/4 of being in a cocked hatRobin Stuart23 Jun 2021, 15:38
Re: June 24, 1178: Today in HistoryRobin Stuart25 Jun 2021, 13:29
Re: Milky Way photo navigation challengeRobin Stuart25 Jun 2021, 20:57
Re: Milky Way photo navigation challengeRobin Stuart28 Jun 2021, 18:49
Re: Milky Way photo navigation challengeRobin Stuart29 Jun 2021, 14:19
Evolution of the Flat BygraveRobin Stuart12 Jul 2021, 14:45
Re: An azimuth formula that works everywhere? Even on poles?Robin Stuart21 Jul 2021, 18:45
Re: An azimuth formula that works everywhere? Even on poles?Robin Stuart23 Jul 2021, 17:34
Re: An azimuth formula that works everywhere? Even on poles?Robin Stuart24 Jul 2021, 14:01
Re: Time ballsRobin Stuart19 Sep 2021, 11:55
Re: Time ballsRobin Stuart5 Oct 2021, 20:33
Re: Time ballsRobin Stuart6 Oct 2021, 14:07
John Wesley Powell River History MuseumRobin Stuart29 Oct 2021, 14:04
Re: John Wesley Powell River History MuseumRobin Stuart30 Oct 2021, 16:33
Thacher's Calculating InstrumentRobin Stuart31 Oct 2021, 13:20
Re: Average Sun SDRobin Stuart5 Nov 2021, 14:29
Re: Navigation Spreadsheets in 2022Robin Stuart14 Nov 2021, 20:03
Re: Navigation Spreadsheets in 2022Robin Stuart16 Nov 2021, 14:01
Re: Practical Haversine Use (with logs)Robin Stuart17 Nov 2021, 20:52
Re: Noon Longitude by Equal AltitudesRobin Stuart24 Nov 2021, 21:14
Re: Noon Longitude by Equal AltitudesRobin Stuart28 Nov 2021, 17:52
Re: Latitude and longitude by birdfootRobin Stuart20 Dec 2021, 14:57
Re: Latitude and longitude by birdfootRobin Stuart22 Dec 2021, 19:43
Re: Latitude and longitude by birdfootRobin Stuart23 Dec 2021, 12:51
Re: Bermuda to St Helena on a North Atlantic Mercator ChartRobin Stuart29 Dec 2021, 18:23
Moon altitude corrections and artificial horizonsRod Brown20 Nov 2021, 05:20
Re: Own sextant - always betterRommel John Miller10 Jan 2021, 22:56
Re: Circular slide rule type deviceRonald van Riet18 Jan 2021, 08:56
Re: Milky Way photo navigation challengeRussell D. Sampson27 Jun 2021, 19:46
Re: Milky Way photo navigation challengeRussell D. Sampson27 Jun 2021, 19:48
Re: Modern Celestial ONE: Sextants & Sun SightsSam Lyness23 Jan 2021, 17:05
Re: Breaking News....Sam Lyness28 Feb 2021, 16:15
Re: Obscure Nautical Almanac starSean C3 Jan 2021, 07:14
Re: Obscure Nautical Almanac starSean C4 Jan 2021, 09:29
Re: Negative leap second?Sean C5 Jan 2021, 22:16
Re: Excel AlmanacSean C6 Jan 2021, 08:46
Re: Excel AlmanacSean C7 Jan 2021, 07:38
Re: Excel AlmanacSean C7 Jan 2021, 14:23
Re: Excel AlmanacSean C8 Jan 2021, 00:02
Re: Excel AlmanacSean C8 Jan 2021, 00:16
Re: Excel AlmanacSean C9 Jan 2021, 09:55
Re: An Evening with Map Projections - Free WebinarSean C10 Jan 2021, 19:19
Re: Traditional navigation by slide ruleSean C15 Jan 2021, 23:27
Re: Excel AlmanacSean C16 Jan 2021, 08:51
Re: Soviet star globe with Latin inscriptionsSean C22 Jan 2021, 07:48
Re: Excel AlmanacSean C23 Jan 2021, 11:37
Re: Excel AlmanacSean C27 Jan 2021, 22:47
Re: 1946 US Coast Guard SextantSean C30 Jan 2021, 06:25
Re: What is a naut?Sean C2 Feb 2021, 05:53
Re: Excel AlmanacSean C2 Feb 2021, 12:38
Re: A Plath Sextant listed for sale with an odd eye pieceSean C8 Feb 2021, 05:35
Re: Online Office Hours: 6pm EST (2300 UT) Practical LunarsSean C15 Feb 2021, 06:14
16 Astronomy eBooks for $18Sean C17 Feb 2021, 13:41
Re: 16 Astronomy eBooks for $18Sean C18 Feb 2021, 06:19
Re: True North and PrecessionSean C19 Feb 2021, 00:12
Re: Cel Nav SimulatorSean C21 Feb 2021, 06:14
Re: Calculate GHA Aries/Some updates for web appsSean C2 Mar 2021, 08:16
Re: Calculate GHA Aries/Some updates for web appsSean C5 Mar 2021, 02:43
Re: Telemeter/QuadrantSean C28 Mar 2021, 22:10
Re: Digital Aries clockSean C3 May 2021, 23:17
Re: NavList website and cookiesSean C18 May 2021, 06:36
Re: Ken Gebhart obituarySean C19 May 2021, 05:26
Re: Air Force One sextant?Sean C20 May 2021, 05:36
Re: Air Force One sextant?Sean C20 May 2021, 05:38
Re: Air Force One sextant?Sean C20 May 2021, 08:34
Re: Air Force One sextant?Sean C21 May 2021, 09:59
Re: Practice Problems for Tables Methods?Sean C2 Jun 2021, 05:41
Re: Relativistic interstellar navigation (or how to avoid getting Lost in Space!)Sean C4 Jun 2021, 05:29
Re: Problem Practice (group project)Sean C24 Jun 2021, 09:55
Re: A-5 Course and Distance ComputerSean C30 Jun 2021, 05:16
Re: Degree sign in WindowsSean C7 Aug 2021, 01:13
SR-71 Astroinertial Navigation SystemSean C9 Aug 2021, 15:36
Re: Outlook time zonesSean C10 Aug 2021, 02:49
27th Meeting of Researchers of Slide RulesSean C16 Aug 2021, 04:10
Re: Air Force One sextant?Sean C31 Aug 2021, 20:29
Re: Air Force One sextant?Sean C3 Sep 2021, 06:49
Re: Air Force One sextant?Sean C3 Sep 2021, 21:31
Re: Air Force One sextant? [Spoiler!]Sean C4 Sep 2021, 00:25
Re: $5 celestial navigation books at your librarySean C5 Sep 2021, 03:24
Re: ADMIN: internet connection speeds and statusSean C6 Sep 2021, 18:55
Re: Status of USNO's Celestial Navigation Data web siteSean C25 Sep 2021, 22:27
Re: Finding IC for A-12 bubble sextantsSean C7 Oct 2021, 02:32
Re: Finding IC for A-12 bubble sextantsSean C8 Oct 2021, 22:45
Re: Finding IC for A-12 bubble sextantsSean C9 Oct 2021, 06:22
Re: Venus in daylight in southern latitudesSean C21 Oct 2021, 00:28
Re: Venus in daylight in southern latitudesSean C21 Oct 2021, 18:15
Re: Moonrise over Connecticut, 19 October 2021Sean C30 Oct 2021, 03:38
Re: Moonrise-over-ConnecticutSean C8 Nov 2021, 22:24
Re:Moonrise-over-ConnecticutSean C15 Nov 2021, 22:45
Re: Navigation Spreadsheets in 2022Sean C15 Nov 2021, 23:24
Re: EoT Curve calculated by VBSean C23 Nov 2021, 22:27
Re: Where is the Prime Meridian?Sean C11 Dec 2021, 23:08
Re: When and where is the Solstice today?Sean C21 Dec 2021, 06:07
Re: NY Times Article on GPSSimon Horwith25 Jan 2021, 17:19
Re: Eye cup for my sextantSimon Horwith28 Jan 2021, 02:39
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Simon Horwith29 Jan 2021, 19:32
C Plath YachtsmanSimon Horwith15 Feb 2021, 19:06
Re: C Plath YachtsmanSimon Horwith15 Feb 2021, 20:18
Re: C Plath YachtsmanSimon Horwith15 Feb 2021, 21:41
A-10A WWII Airforce Sextant for parts/repairSimon Horwith31 Mar 2021, 16:49
Re: You need these for your study!Simon Horwith19 Sep 2021, 01:36
Re: Borrowed BygraveSteve Gillion15 Jun 2021, 09:13
Practice Problems for Tables Methods?Steve Ward2 Jun 2021, 00:04
Re: Practice Problems for Tables Methods?Steve Ward2 Jun 2021, 13:10
Re: Practice Problems for Tables Methods?Steve Ward2 Jun 2021, 13:11
Re: Practice Problems for Tables Methods?Steve Ward2 Jun 2021, 23:08
Problem Practice (group project)Steve Ward2 Jun 2021, 23:57
Re: Problem Practice (group project)Steve Ward3 Jun 2021, 02:22
Re: Problem Practice (group project)Steve Ward4 Jun 2021, 14:06
Re: Problem Practice (group project)Steve Ward4 Jun 2021, 14:10
Re: Results of the sunclock experimentSteve Ward4 Jun 2021, 14:24
Re: Problem Practice (group project)Steve Ward4 Jun 2021, 22:26
New memberStuart T10 Aug 2021, 13:26
Re: New memberStuart T10 Aug 2021, 17:18
Re: New memberStuart T11 Aug 2021, 13:16
Re: New memberStuart T11 Aug 2021, 14:40
Re: Dummy Batteries for an A12Stuart T20 Aug 2021, 15:37
$5 celestial navigation books at your libraryStuart T4 Sep 2021, 12:33
Re: $5 celestial navigation books at your libraryStuart T6 Sep 2021, 12:33
Re: Frank’s On Line Celestial Navi gation Courses … heartily endorsed!Stuart T18 Sep 2021, 18:06
The Last Navigator VideoStuart T29 Nov 2021, 15:01
Anyone know Ben Emory in Maine? CN STEM classStuart T1 Dec 2021, 13:52
Digital SextantSung Cho13 Jan 2021, 15:56
Re: Plath certificate: drop of solderTerry Syrokosz5 Feb 2021, 14:18
Re: Plath certificate: drop of solderTerry Syrokosz6 Feb 2021, 08:12
Re: Plath certificate: drop of solderTerry Syrokosz7 Feb 2021, 16:22
Re: New memberTerry Syrokosz21 Aug 2021, 12:18
Sextant frame design- Who won?Thomas Rick5 Nov 2021, 10:26
Re: Sextant frame design- Who won?Thomas Rick5 Nov 2021, 14:04
Re: Sextant frame design- Who won?Thomas Rick7 Nov 2021, 21:45
Re: Sextant frame design- Who won?Thomas Rick8 Nov 2021, 12:56
Any experience with a C&P "Special" sextant?Thomas Rick10 Nov 2021, 13:00
Re: Any experience with a C&P "Special" sextant?Thomas Rick10 Nov 2021, 17:16
Re: Any experience with a C&P "Special" sextant?Thomas Rick11 Nov 2021, 10:55
Re: HO 208 vs Compact NA tables.Tibor Miseta26 Jan 2021, 21:55
Re: Office Hours Ageton ClassicTibor Miseta11 Feb 2021, 19:06
Re: Office Hours Ageton ClassicTibor Miseta11 Feb 2021, 19:16
DIY Starfinder - a lockdown projectTibor Miseta2 Mar 2021, 20:52
Re: DIY Starfinder - a lockdown projectTibor Miseta4 Mar 2021, 17:48
Re: Non-navigational Star coordinatesTibor Miseta6 Mar 2021, 18:30
Re: DIY Starfinder - a lockdown projectTibor Miseta13 Mar 2021, 23:12
Re: DIY Starfinder - a lockdown projectTibor Miseta22 Apr 2021, 22:07
"Traditional" flat BygraveTibor Miseta30 Jul 2021, 22:13
Re: Practical Haversine UseTibor Miseta13 Nov 2021, 08:58
Re: Moon altitude corrections and artificial horizonsTibor Miseta20 Nov 2021, 23:08
Re:DIY Starfinder - a lockdown projectTibor Miseta14 Dec 2021, 21:52
Guy Murchie?Tom Harnish5 Jul 2021, 04:01
Re: Lunars in hiTom Harnish5 Jul 2021, 13:55
Recording sextant (maybe octant)?Tom Harnish5 Jul 2021, 14:17
Re: Guy Murchie?Tom Harnish5 Jul 2021, 18:02
Re: Lunars in historyTom Harnish7 Jul 2021, 20:20
Re: Lunars in historyTom Harnish10 Jul 2021, 22:48
Re: Recording sextant (maybe octant)?Tom Harnish14 Jul 2021, 20:41
Bubble size and accuracyTom Hope29 Jul 2021, 11:14
Re: Breaking News....Tom Sult28 Feb 2021, 21:41
Cellphone tower position as GPS backup.Tom Sult6 Sep 2021, 19:10
Soviet star globe with Latin inscriptionsTony Oz21 Jan 2021, 15:16
Re: Soviet star globe with Latin inscriptionsTony Oz21 Jan 2021, 18:16
GPS AntiSpoof and integrating sextants?Tony Oz21 Jan 2021, 21:23
Re: GPS AntiSpoof and integrating sextants?Tony Oz22 Jan 2021, 09:02
Re: GPS AntiSpoof and integrating sextants?Tony Oz22 Jan 2021, 14:38
The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Tony Oz28 Jan 2021, 11:19
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Tony Oz29 Jan 2021, 08:28
Re: Celestial Navigation in the MoviesTony Oz2 Feb 2021, 09:15
About the Waylosing: my own experience.Tony Oz3 Feb 2021, 14:02
Re: CP-300/U USAF Star FinderTony Oz9 Feb 2021, 17:36
Re: CP-300/U USAF Star FinderTony Oz10 Feb 2021, 10:06
Re: Celestial Navigation in the MoviesTony Oz12 Feb 2021, 09:43
Re: Stereographic Projection of the EclipticTony Oz15 Feb 2021, 13:48
An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz19 Feb 2021, 14:54
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz20 Feb 2021, 11:16
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz21 Feb 2021, 19:10
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz22 Feb 2021, 18:48
Re: DIY Starfinder - a lockdown projectTony Oz3 Mar 2021, 09:09
Re: Calculate GHA Aries in your headTony Oz3 Mar 2021, 18:35
Re: Calculate GHA Aries in your headTony Oz4 Mar 2021, 07:55
Re: DIY Starfinder - a lockdown projectTony Oz4 Mar 2021, 08:14
Re: DIY Starfinder - a lockdown projectTony Oz5 Mar 2021, 08:51
Re: Wind Velocity from Three DriftsTony Oz7 Mar 2021, 23:48
Re: Wind Velocity from Three DriftsTony Oz9 Mar 2021, 12:33
Re: Wind Velocity from Three DriftsTony Oz9 Mar 2021, 19:05
Re: Celesticomp V and other pocket computersTony Oz10 Mar 2021, 16:19
Re: New versions of GPS Anti Spoof appsTony Oz11 Mar 2021, 10:47
Re: Celesticomp V and other pocket computersTony Oz11 Mar 2021, 12:21
Re: Celesticomp V and other pocket computersTony Oz11 Mar 2021, 20:46
Re: Celesticomp V and other pocket computersTony Oz12 Mar 2021, 08:19
Re: Wind Velocity from Three DriftsTony Oz12 Mar 2021, 14:27
Re: Wind Velocity from Three DriftsTony Oz12 Mar 2021, 19:54
Re: Running down an Astro-Position LineTony Oz16 Mar 2021, 17:32
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Tony Oz17 Mar 2021, 08:59
Re: Plot Sheet GeneratorTony Oz24 Mar 2021, 07:53
Re: Cel Nav SimulatorTony Oz24 Mar 2021, 15:40
Re: Navigation by the MoonTony Oz25 Mar 2021, 13:45
The "B-17 Flying Fortress" game: any good as a CelNav simulator?Tony Oz30 Mar 2021, 19:58
USNO Clone as an "under the hood" CN engine for a flight simulator?Tony Oz31 Mar 2021, 15:50
Re: USNO Clone as an "under the hood" CN engine for a flight simulator?Tony Oz31 Mar 2021, 17:29
Re: Time Sight and Ex-Meridian by BygraveTony Oz6 Apr 2021, 15:59
Re: Time Sight and Ex-Meridian by BygraveTony Oz8 Apr 2021, 07:29
A Sun-compass landfall?Tony Oz8 Apr 2021, 13:55
Re: A Sun-compass landfall?Tony Oz9 Apr 2021, 12:10
Re: A Sun-compass landfall?Tony Oz12 Apr 2021, 12:21
A Diy E6-B?Tony Oz12 Apr 2021, 15:47
Re: A Diy E6-B?Tony Oz13 Apr 2021, 15:19
Re: A Diy E6-B?Tony Oz14 Apr 2021, 08:18
Re: A Diy E6-B?Tony Oz16 Apr 2021, 08:01
Re: A Diy E6-B?Tony Oz16 Apr 2021, 08:09
Re: A Sun-compass landfall?Tony Oz16 Apr 2021, 11:36
Re: Wind Velocity from Three DriftsTony Oz19 Apr 2021, 11:00
Re: Fulford Estate Collection - Online Auction Apr22-25Tony Oz22 Apr 2021, 14:52
Re: Kaster SpherantTony Oz23 Apr 2021, 08:53
Re: DIY Starfinder - a lockdown projectTony Oz23 Apr 2021, 11:03
Re: Golden Globe Race -- how would you detect cheating?Tony Oz28 Apr 2021, 08:33
DIY star-globe: advise neededTony Oz2 May 2021, 21:10
Re: DIY star-globe: advise neededTony Oz4 May 2021, 08:17
Re: Digital Aries clockTony Oz4 May 2021, 11:40
The "ИМС-3": a clone of the SOLD KM2 octantTony Oz12 May 2021, 15:49
Re: The "ИМС-3": a clone of the SOLD KM2 octantTony Oz13 May 2021, 08:05
The Moon is near the Mercury today (2021-05-13)Tony Oz13 May 2021, 10:25
Re: The "ИМС-3": a clone of the SOLD KM2 octantTony Oz14 May 2021, 08:02
Re: The Moon is near the Mercury today (2021-05-13)Tony Oz14 May 2021, 08:18
Re: Stick shadows and sundial curvesTony Oz31 May 2021, 14:43
Re: Results of the sunclock experimentTony Oz4 Jun 2021, 15:14
Re: Bill Morris' MHR1 reproductionTony Oz13 Jun 2021, 09:58
An azimuth formula that works everywhere? Even on poles?Tony Oz20 Jul 2021, 16:42
Re: An azimuth formula that works everywhere? Even on poles?Tony Oz21 Jul 2021, 12:45
Re: An azimuth formula that works everywhere? Even on poles?Tony Oz22 Jul 2021, 12:07
Re: Longitude by star clockTony Oz30 Aug 2021, 08:04
Re: Compare Methods: Lat/Lon Near NoonTony Oz31 Aug 2021, 07:48
Re: Compare Methods: Lat/Lon Near NoonTony Oz31 Aug 2021, 08:49
Re: Compare Methods: Lat/Lon Near NoonTony Oz1 Sep 2021, 07:45
Re: Compare Methods: Lat/Lon Near NoonTony Oz3 Sep 2021, 08:33
Re: Compare Methods: Lat/Lon Near NoonTony Oz6 Sep 2021, 08:47
Anomalous atmospheric conditions and Dip correction?Tony Oz6 Sep 2021, 11:42
Re: Sextant square drive screw toolTony Oz9 Sep 2021, 15:49
Re: Three Oddball SextantsTony Oz10 Sep 2021, 12:16
Re: Compare Methods: Lat/Lon Near NoonTony Oz13 Sep 2021, 14:57
Terminology: somethingMadeGood vs somethingOverGround?Tony Oz16 Sep 2021, 07:53
Re: A12 bubble chamberTony Oz17 Sep 2021, 16:09
HiTech scratchpad instead of paper&pencil?Tony Oz21 Sep 2021, 09:06
Re: IE determination Freiberger Yacht Sextant.Tony Oz24 Sep 2021, 17:48
Re: IE determination Freiberger Yacht SextantTony Oz26 Sep 2021, 15:05
Re: IE determination Freiberger Yacht SextantTony Oz26 Sep 2021, 19:59
Re: IE determination Freiberger Yacht SextantTony Oz27 Sep 2021, 09:01
Re: IE determination Freiberger Yacht Sextant.Tony Oz27 Sep 2021, 15:33
Re: Side error is not a real errorTony Oz27 Sep 2021, 17:55
Re: Side error is not a real errorTony Oz28 Sep 2021, 17:23
Re: Compare Methods: Lat/Lon Near NoonTony Oz1 Oct 2021, 19:16
Re: Time ballsTony Oz5 Oct 2021, 16:36
IE in bubble sextants: not so easyTony Oz6 Oct 2021, 12:03
Re: Finding IC for A-12 bubble sextantsTony Oz6 Oct 2021, 15:28
Re: Finding IC for A-12 bubble sextantsTony Oz7 Oct 2021, 07:07
Re: Finding IC for A-12 bubble sextantsTony Oz7 Oct 2021, 15:32
Re: Finding IC for A-12 bubble sextants+ AntiSpoofTony Oz7 Oct 2021, 19:59
An instant value vs an integrated one?Tony Oz8 Oct 2021, 07:06
Re: An instant value vs an integrated one?Tony Oz10 Oct 2021, 08:27
Re: An instant value vs an integrated one?Tony Oz11 Oct 2021, 20:29
Re: Book available: Schereth's Lat Lon by the Noon SightTony Oz12 Oct 2021, 07:28
Re: Venus in daylight in southern latitudesTony Oz21 Oct 2021, 08:03
Re: Venus in daylight in southern latitudesTony Oz21 Oct 2021, 17:08
Re: Star Constellation Jigsaw PuzzleTony Oz1 Nov 2021, 10:52
Re: Calculate new coordinates given bearing and distance?Tony Oz1 Nov 2021, 17:28
Re: Calculate new coordinates given bearing and distance?Tony Oz2 Nov 2021, 09:07
Re: Calculate new coordinates given bearing and distance?Tony Oz3 Nov 2021, 11:53
Re: How to put a mirror spring in place ?Tony Oz3 Nov 2021, 14:36
Re: Calculate new coordinates given bearing and distance?Tony Oz4 Nov 2021, 18:06
Re: Calculate new coordinates given bearing and distance?Tony Oz4 Nov 2021, 23:45
Re: Calculate new coordinates given bearing and distance?Tony Oz5 Nov 2021, 21:27
Re: Analemma.com updated!Tony Oz8 Nov 2021, 16:16
Re: DR with traverse tablesTony Oz11 Nov 2021, 08:28
Re: DR with traverse tablesTony Oz12 Nov 2021, 09:05
Re: Practical Haversine UseTony Oz14 Nov 2021, 19:50
Re: Practical Haversine UseTony Oz16 Nov 2021, 17:15
Re: Practical Haversine Use (with logs)Tony Oz16 Nov 2021, 20:39
Re: Practical Haversine Use (with logs)Tony Oz18 Nov 2021, 07:46
Re: Bare essentialsTony Oz20 Nov 2021, 02:15
Re: Bare essentialsTony Oz22 Nov 2021, 16:01
Re: Bare essentialsTony Oz23 Nov 2021, 17:00
Re: Bare essentialsTony Oz24 Nov 2021, 16:43
Re: The Last Navigator VideoTony Oz30 Nov 2021, 14:27
Re: A day's work in 1937 onboard the barque Alastor, revisitedTony Oz1 Dec 2021, 11:28
Celnav.nl is no more? Pity!Tony Oz2 Dec 2021, 10:34
Re: Celnav.nl is no more? Pity!Tony Oz3 Dec 2021, 07:53
Re: Celnav.nl is no more? Pity!Tony Oz3 Dec 2021, 08:31
Re: For which celestial bodies is it relevant to display the lunar distance?Tony Oz3 Dec 2021, 08:34
Re: Ex RNZAF navigator keen to learn marine sextant waysTony Oz3 Dec 2021, 08:59
Re: For which celestial bodies is it relevant to display the lunar distance?Tony Oz3 Dec 2021, 21:34
Re: International Date LineTony Oz5 Dec 2021, 14:10
Re: For which celestial bodies is it relevant to display the lunar distance?Tony Oz5 Dec 2021, 14:15
Re: Where is the Prime Meridian?Tony Oz11 Dec 2021, 09:28
Re: Latitude and longitude by birdfootTony Oz20 Dec 2021, 10:48
Re:DIY Starfinder - a lockdown projectTony Oz21 Dec 2021, 14:43
Re: Bermuda to St Helena on a North Atlantic Mercator ChartTony Oz28 Dec 2021, 14:37
Re: Mechanical Maneuvering Board instructionsTR Proven22 Jun 2021, 14:45
Re: On this CP-300\U, recently discussed.Tracy Shrier12 Feb 2021, 19:52
Davis WorksheetsTracy Shrier11 Mar 2021, 01:20
Re: CalculatorsTudor Jones30 Jul 2021, 16:20
Re: Willmann-Bell closed?Wayne Hilliard9 Jan 2021, 23:26
Kollsman periscopic sextant aircraft mount to offerWerner Luehmann9 Aug 2021, 16:11
Re: Kollsman periscopic sextant aircraft mount to offerWerner Luehmann11 Aug 2021, 19:22
Re: Kollsman Aircraft SextantsWerner Luehmann3 Dec 2021, 14:57
Re: An All-Haversine Azimuth (from Lat, Dec and dLon alone)?Willi Strohl16 Mar 2021, 09:27
Re: Universal Plotting Sheet and Weir diagramWilli Strohl25 May 2021, 19:34
Re: Excel AlmanacWolfgang Hasper8 Jan 2021, 08:00
Re: Plath certificate: drop of solderWolfgang Hasper5 Feb 2021, 20:34
Re: Stereographic Projection of the EclipticWolfgang Hasper15 Feb 2021, 08:30
Re: Bill Morris' MHR1 reproductionWolfgang Hasper14 Jun 2021, 07:40
Re: Bill Morris' MHR1 reproductionWolfgang Hasper16 Jun 2021, 11:09
Re: Borrowed BygraveWolfgang Hasper16 Jun 2021, 11:11
Re: Evolution of the Flat BygraveWolfgang Hasper13 Jul 2021, 09:09
Re: Three Oddball SextantsWolfgang Hasper13 Sep 2021, 18:58
Re: Bowditch editions: good and badWolfgang Köberer21 Feb 2021, 09:38
Re: Lunars in hiWolfgang Köberer7 Jul 2021, 14:13
Re: HO 214 HistoryWolfgang Köberer31 Oct 2021, 10:50

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