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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 subject.

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

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