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

January, 2021

Index includes 255 messages. Sorted alphabetically by subject.

                    
1946 US Coast Guard SextantCarl Main29 Jan, 23:55
Re: 1946 US Coast Guard SextantMichael Cain30 Jan, 01:42
Re: 1946 US Coast Guard SextantSean C30 Jan, 06:25
Re: 1946 US Coast Guard SextantRobert VanderPol II30 Jan, 20:46
A-10 Bubble Sextant AssemblyNoell Wilson23 Jan, 20:25
Re: A-10 Bubble Sextant AssemblyGary LaPook24 Jan, 02:16
Re: A-10 Bubble Sextant AssemblyGary LaPook24 Jan, 02:17
Re: A-10 Bubble Sextant AssemblyNoell Wilson24 Jan, 18:58
Aeronautical Periscopic Bubble SextantCam Brien14 Jan, 22:41
Re: Aeronautical Periscopic Bubble SextantGary LaPook16 Jan, 06:33
Re: Aeronautical Periscopic Bubble SextantCam Brien16 Jan, 19:52
Re: Aeronautical Periscopic Bubble SextantFrank Reed16 Jan, 19:59
Afternoon SightDavid C10 Jan, 03:10
Re: Afternoon SightDavid Pike10 Jan, 09:31
Re: Afternoon SightDavid C10 Jan, 21:12
An Evening with Map Projections - Free WebinarDavid Pike7 Jan, 15:08
Re: An Evening with Map Projections - Free WebinarFrank Reed10 Jan, 18:51
Re: An Evening with Map Projections - Free WebinarSean C10 Jan, 19:19
Re: Astro slide ruleAlan S5 Jan, 00:24
Re: Astro slide ruleAlan S27 Jan, 00:23
AstrolabesBob Goethe25 Jan, 17:10
Re: AstrolabesFrank Reed25 Jan, 18:08
Re: AstrolabesGeoffrey Kolbe26 Jan, 05:45
Re: AstrolabesGary LaPook26 Jan, 08:09
Re: AstrolabesGeoffrey Kolbe26 Jan, 08:15
Re: AstrolabesHerman Dekker26 Jan, 08:19
Re: AstrolabesGary LaPook26 Jan, 08:27
Re: AstrolabesEd Popko26 Jan, 12:46
Re: AstrolabesGeoffrey Kolbe28 Jan, 14:44
Re: AstrolabesGary LaPook29 Jan, 08:51
Azimuth computation formula in Pub. 229Rafael C. Caruso16 Jan, 22:20
Re: Azimuth computation formula in Pub. 229David C17 Jan, 03:03
Re: Azimuth computation formula in Pub. 229David C17 Jan, 03:09
Re: Azimuth computation formula in Pub. 229David C17 Jan, 03:52
Re: Azimuth computation formula in Pub. 229Lars Bergman17 Jan, 11:11
Re: Azimuth computation formula in Pub. 229Rafael C. Caruso17 Jan, 17:35
Re: Azimuth computation formula in Pub. 229Rafael C. Caruso17 Jan, 17:35
Bridge sextantsFrank Reed7 Jan, 22:47
Re: Bridge sextantsMurray Buckman8 Jan, 00:06
Re: Bridge sextantsMurray Buckman8 Jan, 00:26
Catch Australia while you canGary LaPook2 Jan, 09:01
Re: Catch Australia while you canDavid C2 Jan, 21:58
Re: Catch Australia while you canGary LaPook3 Jan, 00:38
Celestial Navigation 19th Century Methods WorkshopFrank Reed26 Jan, 18:46
Re: Christmas week Quizzes - Answer to Muffins QuestionDavid Pike2 Jan, 09:34
Re: Christmas week Quizzes - Answer to Muffins QuestionBill Ritchie4 Jan, 10:45
Re: Christmas week Quizzes - Answer to Muffins QuestionDavid Pike4 Jan, 16:20
Re: Christmas week Quizzes - Suggested solution to the external tangents to three circles problemDavid Pike2 Jan, 09:07
Re: Christmas week Quizzes - Suggested solution to the external tangents to three circles problemDavid Pike3 Jan, 12:34
Re: Christmas week Quizzes - Where's my bike + Final CommentsDavid Pike2 Jan, 10:47
Re: Christmas week QuizzesDavid Pike1 Jan, 09:26
Re: Christmas week QuizzesAdrian F1 Jan, 20:58
Circular slide rule type deviceAlan S18 Jan, 04:18
Re: Circular slide rule type deviceRonald van Riet18 Jan, 08:56
Re: Circular slide rule type deviceDave Walden18 Jan, 22:44
Computing Lunar Comparing Distances by "Plane Sailing"David Iwancio7 Jan, 12:18
Re: CP-300/U USAF Star FinderAlan S22 Jan, 23:10
Re: CP-300/U USAF Star FinderGary LaPook23 Jan, 10:22
Re: CP-300/U USAF Star FinderEd Popko23 Jan, 12:21
Digital SextantSung Cho13 Jan, 15:56
Re: Digital SextantFrank Reed13 Jan, 15:58
Re: Digital SextantFrank Reed13 Jan, 16:26
Re: Digital SextantKen Gebhart13 Jan, 17:19
Re: Excel AlmanacSean C6 Jan, 08:46
Re: Excel AlmanacHerman Dekker6 Jan, 15:13
Re: Excel AlmanacSean C7 Jan, 07:38
Re: Excel AlmanacBill Ritchie7 Jan, 11:32
Re: Excel AlmanacSean C7 Jan, 14:23
Re: Excel AlmanacDave Walden7 Jan, 15:28
Re: Excel AlmanacHerman Dekker7 Jan, 18:37
Re: Excel AlmanacMurray Peake7 Jan, 23:36
Re: Excel AlmanacSean C8 Jan, 00:02
Re: Excel AlmanacSean C8 Jan, 00:16
Re: Excel AlmanacWolfgang Hasper8 Jan, 08:00
Re: Excel AlmanacSean C9 Jan, 09:55
Re: Excel AlmanacSean C16 Jan, 08:51
Re: Excel AlmanacSean C23 Jan, 11:37
Re: Excel AlmanacGeoffrey Kolbe23 Jan, 18:45
Re: Excel AlmanacDavid Pike23 Jan, 19:08
Re: Excel AlmanacSean C27 Jan, 22:47
Eye cup for my sextantBrandon Michael Morgan26 Jan, 20:06
Re: Eye cup for my sextantRobert Swartz28 Jan, 02:00
Re: Eye cup for my sextantSimon Horwith28 Jan, 02:39
Re: Eye cup for my sextantBrandon Michael Morgan28 Jan, 04:29
Flat BygraveAlan S19 Jan, 04:16
Re: Flat BygraveGary LaPook19 Jan, 20:09
Re: Flat BygraveAlan S19 Jan, 22:05
Free Downloadable Electronic Navigation GuideDavid Pike15 Jan, 21:11
Re: Free Downloadable Electronic Navigation GuideAlan S15 Jan, 23:27
GPS AntiSpoof and integrating sextants?Tony Oz21 Jan, 21:23
Re: GPS AntiSpoof and integrating sextants?David Pike21 Jan, 23:26
Re: GPS AntiSpoof and integrating sextants?Tony Oz22 Jan, 09:02
Re: GPS AntiSpoof and integrating sextants?David Pike22 Jan, 09:45
Re: GPS AntiSpoof and integrating sextants?Tony Oz22 Jan, 14:38
Re: GPS AntiSpoof and integrating sextants?Bill Ritchie23 Jan, 10:28
Re: HO 208 vs Compact NA tables.Frederick Curtis26 Jan, 17:59
Re: HO 208 vs Compact NA tables.Gary LaPook26 Jan, 18:51
Re: HO 208 vs Compact NA tables.Greg Rudzinski26 Jan, 20:51
Re: HO 208 vs Compact NA tables.David C26 Jan, 21:11
Re: HO 208 vs Compact NA tables.Tibor Miseta26 Jan, 21:55
Re: HO 208 vs Compact NA tables.David C26 Jan, 21:57
Re: HO 208 vs Compact NA tables.Gary LaPook27 Jan, 07:13
Re: HO 208 vs Compact NA tables.Greg Rudzinski27 Jan, 23:58
IntroductionRichard Toohey13 Jan, 18:58
Re: IntroductionAlexandre Eremenko13 Jan, 19:35
Re: IntroductionRichard Toohey13 Jan, 20:39
Re: IntroductionHewitt Schlereth13 Jan, 23:23
Re: IntroductionRobert VanderPol II14 Jan, 00:37
Re: IntroductionRichard Toohey14 Jan, 00:53
Re: IntroductionRichard Toohey14 Jan, 00:57
Re: IntroductionR William McAllister14 Jan, 07:07
Re: IntroductionRobert VanderPol II14 Jan, 13:18
Re: IntroductionR William McAllister14 Jan, 15:54
Re: IntroductionRichard Toohey14 Jan, 23:27
Re: Introduction and set of HO 214Bob Peterson15 Jan, 15:21
Re: Introduction and set of HO 214Hewitt Schlereth15 Jan, 18:50
Jan Huygen van LinschotenBob Goethe21 Jan, 19:11
Kollsman D1 Periscopic Sextant with mountRobert Swartz16 Jan, 06:39
Kollsman Sextants' NomenclatureRobert Swartz16 Jan, 06:28
Re: Lifeboat sextant instruction bookletAlan S7 Jan, 18:54
Re: Lifeboat sextant instruction bookletAlan S8 Jan, 04:01
M. Low USN MKIII MOD-0 - Illumination issueJohn Rizzuto20 Jan, 22:55
Modern Celestial ONE: Sextants & Sun SightsFrank Reed22 Jan, 17:10
Re: Modern Celestial ONE: Sextants & Sun SightsSam Lyness23 Jan, 17:05
Moon Phases 2021 Including Libration and Position AngleEd Popko12 Jan, 18:54
Re: Moon Phases 2021 Including Libration and Position AngleFrank Reed13 Jan, 02:07
Navigation star namesFrank Reed17 Jan, 04:13
Re: Navigation star namesFrank Reed18 Jan, 04:25
NavList message volumeFrank Reed2 Jan, 00:00
Negative leap second?Gary LaPook5 Jan, 19:55
Re: Negative leap second?Frank Reed5 Jan, 20:29
Re: Negative leap second?Sean C5 Jan, 22:16
Re: Negative leap second?David Iwancio6 Jan, 07:39
Re: Negative leap second?Richard B. Langley6 Jan, 14:25
Re: Negative leap second?David Iwancio6 Jan, 19:14
No Sunday "Office Hours" tomorrow (Jan 31)Frank Reed31 Jan, 02:19
NOAA Competition: MagNet: Model the Geomagnetic FieldJohn Carbone26 Jan, 14:01
Re: NOAA Competition: MagNet: Model the Geomagnetic FieldFrank Reed26 Jan, 17:59
NY Times Article on GPSChris Post24 Jan, 15:36
Re: NY Times Article on GPSRobert Goldberg24 Jan, 19:15
Re: NY Times Article on GPSBill B24 Jan, 23:59
Re: NY Times Article on GPSDoug Faunt25 Jan, 00:16
Re: NY Times Article on GPSRobert Swartz25 Jan, 16:43
Re: NY Times Article on GPSFrank Reed25 Jan, 16:52
Re: NY Times Article on GPSSimon Horwith25 Jan, 17:19
Re: Obscure Nautical Almanac starRobin Stuart1 Jan, 13:54
Re: Obscure Nautical Almanac starFrank Reed1 Jan, 15:09
Re: Obscure Nautical Almanac starRobin Stuart1 Jan, 19:53
Re: Obscure Nautical Almanac starFrank Reed2 Jan, 15:41
Re: Obscure Nautical Almanac starRobin Stuart2 Jan, 20:01
Re: Obscure Nautical Almanac starFrank Reed3 Jan, 04:29
Re: Obscure Nautical Almanac starSean C3 Jan, 07:14
Re: Obscure Nautical Almanac starRobert H. van Gent3 Jan, 13:01
Re: Obscure Nautical Almanac starFrank Reed3 Jan, 18:27
Re: Obscure Nautical Almanac starFrank Reed3 Jan, 18:43
Re: Obscure Nautical Almanac starFrank Reed3 Jan, 19:16
Re: Obscure Nautical Almanac starSean C4 Jan, 09:29
Re: Obscure Nautical Almanac starFrank Reed7 Jan, 05:23
Re: Obscure Nautical Almanac starCharles McElhill7 Jan, 15:24
Old Sextant - Charles HutchinsonCarl Main13 Jan, 23:48
Re: Old Sextant - Charles HutchinsonRobert VanderPol II14 Jan, 00:44
Re: Old Sextant - Charles HutchinsonAlan S14 Jan, 01:07
Re: Old Sextant - Charles HutchinsonDavid C14 Jan, 02:37
Re: Old Sextant - Charles HutchinsonBill Lionheart14 Jan, 08:52
Re: Old Sextant - Charles HutchinsonJohn Rizzuto14 Jan, 15:40
Re: Old Sextant - Charles HutchinsonFrank Reed14 Jan, 16:34
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 16:49
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 16:51
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 16:52
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 16:55
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 17:07
Re: Old Sextant - Charles HutchinsonFrank Reed14 Jan, 21:32
Re: Old Sextant - Charles HutchinsonCarl Main14 Jan, 23:46
Online Meeting / Office Hours todayFrank Reed1 Jan, 15:16
Re: Online Meeting / Office Hours todayFrank Reed1 Jan, 16:33
Re: Online Meeting / Office Hours todayFrank Reed3 Jan, 17:00
Online meeting Friday 2000 UTFrank Reed22 Jan, 02:14
Re: Online meeting Friday 2000 UTFrank Reed22 Jan, 18:04
Online meeting today 2000 UT (3pm EST, noon PST)Frank Reed29 Jan, 17:36
Re: Online meeting today 2300 UT (6pm EST)Frank Reed24 Jan, 21:24
Online meeting todayFrank Reed8 Jan, 15:40
Re: Online meeting todayFrank Reed10 Jan, 20:30
Re: Online meeting todayFrank Reed15 Jan, 19:42
Re: Online meeting todayFrank Reed17 Jan, 17:17
Own sextant - always betterIgor S.10 Jan, 22:14
Re: Own sextant - always betterRommel John Miller10 Jan, 22:56
Re: Own sextant - always betterGreg Rudzinski11 Jan, 02:39
Re: Patrick O'Brian characters discuss time and longitudeJim Sergovic14 Jan, 23:44
Perihelion coming up in a few minutesDave Walden2 Jan, 13:31
Re: Perihelion coming up in a few minutesDave Walden2 Jan, 14:47
Re: Perihelion coming up in a few minutesFrank Reed2 Jan, 15:07
Re: Perihelion coming up in a few minutesDave Walden2 Jan, 23:57
Re: Perihelion coming up in a few minutesGary LaPook3 Jan, 00:13
Polhemus Celestial Computer and Coriolis CorrectionEd Popko24 Jan, 00:09
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook24 Jan, 02:08
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook24 Jan, 02:20
Re: Polhemus Celestial Computer and Coriolis CorrectionEd Popko24 Jan, 10:43
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook25 Jan, 06:32
Re: Polhemus Celestial Computer and Coriolis CorrectionEd Popko25 Jan, 16:38
Re: Polhemus Celestial Computer and Coriolis CorrectionGary LaPook25 Jan, 20:20
Question about LoP's and Intercepts on a Mercator ChartDavid Iwancio21 Jan, 06:23
Re: Question about LoP's and Intercepts on a Mercator ChartFrank Reed21 Jan, 15:34
Re: Question about LoP's and Intercepts on a Mercator ChartDavid Iwancio23 Jan, 09:56
RE. Kollsman MA2 SextantRobert Swartz16 Jan, 06:08
Reconditioned Link A-12 Aircraft Bubble Sextant For SaleRobert Swartz23 Jan, 21:35
Reconditioning SextantsRobert Swartz4 Jan, 04:11
Reflecting CircleBill Ritchie14 Jan, 20:51
RIN Submarine Navigation and Ocean Sailing webinars are now on YouTube.David Pike7 Jan, 15:02
Royal Observatory workshopFrank Reed4 Jan, 17:12
Re: Royal Observatory workshopMichael Bradley4 Jan, 21:25
Solar Eclipses in high latitudesBob Crawley12 Jan, 09:43
Soviet star globe with Latin inscriptionsTony Oz21 Jan, 15:16
Re: Soviet star globe with Latin inscriptionsFrank Reed21 Jan, 15:40
Re: Soviet star globe with Latin inscriptionsDave Walden21 Jan, 18:15
Re: Soviet star globe with Latin inscriptionsTony Oz21 Jan, 18:16
Re: Soviet star globe with Latin inscriptionsSean C22 Jan, 07:48
Space station sextant returned to EarthPaul Hirose16 Jan, 22:03
Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio12 Jan, 11:57
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacFrank Reed12 Jan, 17:06
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacHerman Dekker12 Jan, 17:50
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio13 Jan, 21:21
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacRichard Toohey14 Jan, 01:48
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacDavid Iwancio15 Jan, 04:03
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacRichard Toohey16 Jan, 11:33
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacFrank Reed16 Jan, 18:36
Tatakoto subSunFrank Reed30 Jan, 01:09
The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Tony Oz28 Jan, 11:19
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Frank Reed28 Jan, 18:59
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Tony Oz29 Jan, 08:28
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Frank Reed29 Jan, 18:51
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Simon Horwith29 Jan, 19:32
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?John Clements29 Jan, 19:33
Re: The "Online Nautical Almanac (UPDATED)" to accept dates in the ISO-8601 format?Peter Monta29 Jan, 21:19
The Past, Present and Future of Nautical Information for Leisure SailorsDavid Pike16 Jan, 18:35
Thomas Sumner & Probus (656 tons)Bruce J. Pennino18 Jan, 18:09
Re: Thomas Sumner & Probus (656 tons)Frank Reed18 Jan, 19:19
Re: Thomas Sumner & Probus (656 tons)Hewitt Schlereth18 Jan, 21:11
Re: Thomas Sumner & Probus (656 tons)Dave Walden19 Jan, 17:08
Re: Traditional navigation by slide ruleAlan S14 Jan, 01:21
Re: Traditional navigation by slide ruleFrancis Upchurch15 Jan, 16:56
Re: Traditional navigation by slide ruleSean C15 Jan, 23:27
Two More free WebinarsDavid Pike23 Jan, 19:37
What constitutes Round The World (RTW) ?Bob Crawley31 Jan, 14:04
Re: What constitutes Round The World (RTW) ?Bill Lionheart31 Jan, 15:50
Willmann-Bell closed?John Clements9 Jan, 21:54
Re: Willmann-Bell closed?Wayne Hilliard9 Jan, 23:26
Re: Willmann-Bell closed?Frank Reed9 Jan, 23:39
Re: Willmann-Bell closed?Frank Reed10 Jan, 01:03
Re: Willmann-Bell closed?David Iwancio10 Jan, 02:43
Re: Willmann-Bell closed?Bela Kovacs10 Jan, 10:29
Re: Willmann-Bell closed?Andy Howse10 Jan, 12:53
Winter celestial navigation workshopsFrank Reed13 Jan, 21:21
Your Earth is too cloudyFrank Reed19 Jan, 18:09
Re: Your Earth is too cloudyJim Rives19 Jan, 23:41
Re: Your Earth is too cloudyFrank Reed20 Jan, 03:18

Index includes 255 messages.

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