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

December, 2019

Index includes 336 messages. Sorted by message ID, in descending order.

                    
Re: Correcting for the movement of an observer: a plausible explanation?Frank Reed31 Dec 2019, 23:56
New Year's EveRommel John Miller31 Dec 2019, 23:10
Re: Pilot watch slide rulesTony Oz31 Dec 2019, 06:15
Re: Pilot watch slide rulesSean C30 Dec 2019, 23:01
Pilot watch slide rulesPaul Hirose30 Dec 2019, 21:03
Re: On the Implications of the Earth's Sidereal RotationJohn D. Howard30 Dec 2019, 15:31
On the Implications of the Earth's Sidereal RotationBrad Morris30 Dec 2019, 03:44
Re: Correcting for the movement of an observer: a plausible explanation?David Pike29 Dec 2019, 20:15
Re: Bright planet near the Moon tonightDavid C29 Dec 2019, 08:51
Re: Bright planet near the Moon tonightDavid Iwancio29 Dec 2019, 08:47
Re: Bright planet near the Moon tonightJoe Suligoy29 Dec 2019, 06:23
Bright planet near the Moon tonightRommel John Miller29 Dec 2019, 04:16
Re: HO SeriesDave Walden29 Dec 2019, 02:17
Re: Radium Infused Bubble SextantGary LaPook28 Dec 2019, 23:39
Re: Correcting for the movement of an observer: a plausible explanation?Gary LaPook28 Dec 2019, 23:37
Re: Correcting for the movement of an observer: a plausible explanation?Gary LaPook28 Dec 2019, 23:25
Re: HO SeriesBrad Morris28 Dec 2019, 21:21
Re: Correcting for the movement of an observer: a plausible explanation?Frank Reed28 Dec 2019, 21:12
Re: HO SeriesFrank Reed28 Dec 2019, 18:39
Re: HO SeriesRobert VanderPol II28 Dec 2019, 04:55
Re: CN - quick reference cardIgor S.28 Dec 2019, 00:19
Re: Using the Anti Spoofing AppHuub Robroek27 Dec 2019, 18:11
Re: HO SeriesGary LaPook27 Dec 2019, 06:09
Re: A-10 Sextant RestorationGary LaPook27 Dec 2019, 05:59
Re: A-10 Sextant RestorationLou deMartely27 Dec 2019, 02:58
Re: What do you understand by a footstep?Lu Abel27 Dec 2019, 00:20
Re: HO SeriesGary LaPook26 Dec 2019, 23:35
Re: HO SeriesDavid C26 Dec 2019, 23:00
Re: Betelgeuse is fadingDavid C26 Dec 2019, 22:36
Re: HO SeriesFrank Reed26 Dec 2019, 22:36
Re: What do you understand by a footstep?Dustin Baenen26 Dec 2019, 22:16
Re: Betelgeuse is fadingBrad Morris26 Dec 2019, 21:41
HO SeriesDavid C26 Dec 2019, 20:52
What do you understand by a footstep?David Pike26 Dec 2019, 20:47
Re: Betelgeuse is fadingFrank Reed26 Dec 2019, 20:25
Betelgeuse is fadingFrank Reed26 Dec 2019, 19:09
Re: Pub. 249 as Starfinder and Sight-plannerFrank Reed26 Dec 2019, 18:41
Re: If looking for a Bubble Sextant...Dustin Baenen26 Dec 2019, 15:47
Re: Pub. 249 as Starfinder and Sight-plannerHerman Dekker26 Dec 2019, 13:47
Re: Correcting for the movement of an observer: a plausible explanation?Tony Oz26 Dec 2019, 10:12
Re: Radium Infused Bubble SextantTony Oz26 Dec 2019, 08:09
Re: Radium Infused Bubble SextantFrancis Upchurch26 Dec 2019, 07:35
Re: If looking for a Bubble Sextant...Jim Rives26 Dec 2019, 00:52
Re: Radium Infused Bubble SextantDavid C25 Dec 2019, 22:07
Re: Radium Infused Bubble SextantGary LaPook25 Dec 2019, 21:23
Re: Radium Infused Bubble SextantDavid C25 Dec 2019, 21:09
Pub. 249 as Starfinder and Sight-plannerFrank Reed25 Dec 2019, 20:55
Re: Radium Infused Bubble SextantFrancis Upchurch25 Dec 2019, 20:05
Radium Infused Bubble SextantBrad Morris25 Dec 2019, 17:06
Re: Using the Anti Spoofing AppBrian Killian25 Dec 2019, 16:14
Re: Celestial Navigation Data from USNO--alternativeTony Oz25 Dec 2019, 12:31
Re: If looking for a Bubble Sextant...David Pike25 Dec 2019, 11:37
Re: If looking for a Bubble Sextant...Joe Suligoy25 Dec 2019, 09:49
Re: If looking for a Bubble Sextant...David C25 Dec 2019, 08:48
Re: If looking for a Bubble Sextant...Jim Rives25 Dec 2019, 02:43
Re: Off-topic: Oscar-winning "Christmas Carol"Rommel John Miller25 Dec 2019, 00:50
Re: Off-topic: Oscar-winning "Christmas Carol"Tom Sult25 Dec 2019, 00:31
Off-topic: Oscar-winning "Christmas Carol"Frank Reed24 Dec 2019, 23:45
Re: If looking for a Bubble Sextant...Frank Reed24 Dec 2019, 23:03
Re: If looking for a Bubble Sextant...Joe Suligoy24 Dec 2019, 22:13
Re: Using the Anti Spoofing AppJohn D. Howard24 Dec 2019, 21:52
Re: If looking for a Bubble Sextant...Brad Morris24 Dec 2019, 21:34
Re: If looking for a Bubble Sextant...Frank Reed24 Dec 2019, 21:22
Re: If looking for a Bubble Sextant...Chris Caswell24 Dec 2019, 21:14
Estimating Hour Angle of AriesFrank Reed24 Dec 2019, 20:23
Re: If looking for a Bubble Sextant...Brad Morris24 Dec 2019, 19:05
Re: PrecessionRobin Stuart24 Dec 2019, 15:27
Re: Correcting for the movement of an observer: a plausible explanation?Tony Oz24 Dec 2019, 14:44
Re: Using the Anti Spoofing AppHuub Robroek24 Dec 2019, 12:41
Re: If looking for a Bubble Sextant...Chris Caswell24 Dec 2019, 12:11
Re: CN - quick reference cardBrian Killian24 Dec 2019, 06:54
Re: CN - quick reference cardBrian Killian24 Dec 2019, 03:37
Re: CN - quick reference cardKen Gebhart24 Dec 2019, 01:28
Re: World War Two Poster "Plot Your Future Course, Buy Victory Bonds"Brad Morris24 Dec 2019, 00:17
Re: World War Two Poster "Plot Your Future Course, Buy Victory Bonds"Frank Reed23 Dec 2019, 23:27
Re: World War Two Poster "Plot Your Future Course, Buy Victory Bonds"Thomas M Darlingtoh23 Dec 2019, 22:40
Re: Mystery Navy DeviceLuc Van den Borre23 Dec 2019, 22:03
Re: Mystery Navy DeviceWilliam Edward Henry23 Dec 2019, 21:56
Re: Online logbook collectionsLars Bergman23 Dec 2019, 21:35
Re: "no plotting sheet required" - an interesting find in an old bookMike Freeman23 Dec 2019, 18:53
Re: Correcting for the movement of an observer: a plausible explanation?Michael Cain23 Dec 2019, 18:28
Re: Correcting for the movement of an observer: a plausible explanation?Tony Oz23 Dec 2019, 15:53
Re: Correcting for the movement of an observer: a plausible explanation?David Pike23 Dec 2019, 15:20
Re: Homemade plotting sheetsPeter Hakel23 Dec 2019, 14:29
Mystery Navy DeviceGeoffrey Kolbe23 Dec 2019, 14:04
Re: Correcting for the movement of an observer: a plausible explanation?Ed Popko23 Dec 2019, 12:09
CN - quick reference cardIgor S.23 Dec 2019, 10:12
Re: PrecessionMike Freeman23 Dec 2019, 07:43
Re: Correcting for the movement of an observer: a plausible explanation?Greg Rudzinski23 Dec 2019, 04:12
Re: Correcting for the movement of an observer: a plausible explanation?Frank Reed23 Dec 2019, 03:11
Correcting for the movement of an observer: a plausible explanation?Tony Oz22 Dec 2019, 22:35
Re: Homemade plotting sheetsDavid Pike22 Dec 2019, 21:37
Re: "no plotting sheet required" - an interesting find in an old bookPaul Hirose22 Dec 2019, 20:55
Re: Homemade plotting sheetsJohn D. Howard22 Dec 2019, 20:11
Re: The LighthouseFrancis Upchurch22 Dec 2019, 20:03
Re: Homemade plotting sheetsBrad Morris22 Dec 2019, 19:54
Re: Solstice tonightBrad Morris22 Dec 2019, 19:56
Re: PrecessionBrad Morris22 Dec 2019, 19:07
Re: The LighthouseRommel John Miller22 Dec 2019, 18:48
Re: PrecessionRobin Stuart22 Dec 2019, 18:09
Re: Solstice tonightRommel John Miller22 Dec 2019, 16:25
Re: PrecessionTom Sult22 Dec 2019, 15:25
The LighthouseRobin Stuart22 Dec 2019, 13:54
Re: Homemade plotting sheetsMike Freeman22 Dec 2019, 11:22
Re: PrecessionMike Freeman22 Dec 2019, 08:51
Re: PrecessionMike Freeman22 Dec 2019, 08:26
Re: "no plotting sheet required" - an interesting find in an old bookMike Freeman22 Dec 2019, 08:10
Re: CN Online Data CalculatorJoe Suligoy22 Dec 2019, 05:24
If looking for a Bubble Sextant...Joe Suligoy22 Dec 2019, 05:11
Plotting sheets vs paperlessJoe Suligoy22 Dec 2019, 04:54
Re: Solstice tonightDavid C22 Dec 2019, 03:35
Re: Found sextant at local curiosity shop...Frank Reed22 Dec 2019, 01:59
Solstice tonightFrank Reed22 Dec 2019, 01:52
World War Two Poster "Plot Your Future Course, Buy Victory Bonds"Jackson McDonald21 Dec 2019, 22:27
Re: PrecessionDavid Fleming21 Dec 2019, 21:48
Re: Homemade plotting sheetsDavid Pike21 Dec 2019, 21:07
Re: "no plotting sheet required" - an interesting find in an old bookTony Oz21 Dec 2019, 20:08
Re: Online logbook collectionsLars Bergman21 Dec 2019, 19:39
Re: Homemade plotting sheetsFrank Reed21 Dec 2019, 18:58
Re: Homemade plotting sheetsJohn D. Howard21 Dec 2019, 18:19
Re: Homemade plotting sheetsDavid Pike21 Dec 2019, 17:50
Re: "no plotting sheet required" - an interesting find in an old bookMike Freeman21 Dec 2019, 17:46
Re: Homemade plotting sheetsDavid Pike21 Dec 2019, 17:41
Re: PrecessionFrank Reed21 Dec 2019, 17:33
Re: Homemade plotting sheetsMike Freeman21 Dec 2019, 17:06
PrecessionMike Freeman21 Dec 2019, 16:43
CN Online Data CalculatorBruce J. Pennino21 Dec 2019, 15:00
Re: Online logbook collectionsAntoine Couëtte21 Dec 2019, 12:43
Re: 2020 Nautical Almanac Altitude corrections for moon.Alan S21 Dec 2019, 04:11
Re: Homemade plotting sheetsMike Freeman21 Dec 2019, 06:46
Re: Visiting local museum and CN-itemsIgor S.21 Dec 2019, 01:07
Re: Homemade plotting sheetsJohn D. Howard21 Dec 2019, 00:56
Re: Homemade plotting sheetsJohn D. Howard20 Dec 2019, 22:16
Re: 2020 Nautical Almanac Altitude corrections for moon.Robert VanderPol II20 Dec 2019, 21:51
Re: Homemade plotting sheetsDavid Pike20 Dec 2019, 21:41
GPS Anti Spoof: time to update...Frank Reed20 Dec 2019, 21:01
Re: Time ballsRobin Stuart20 Dec 2019, 20:51
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 20:40
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 20:11
Re: 2020 Nautical Almanac Altitude corrections for moon.Paul Hirose20 Dec 2019, 19:01
Re: 2020 Nautical Almanac Altitude corrections for moon.Gary LaPook20 Dec 2019, 18:20
Online logbook collectionsFrank Reed20 Dec 2019, 17:57
Re: Homemade plotting sheetsMike Freeman20 Dec 2019, 17:27
Re: Homemade plotting sheetsMichael Bradley20 Dec 2019, 08:52
Re: Do you Beidou?David C20 Dec 2019, 08:02
2020 Nautical Almanac Altitude corrections for moon.Robert VanderPol II20 Dec 2019, 05:30
Re: Do you Beidou?David C20 Dec 2019, 04:04
Re: Do you Beidou?David C20 Dec 2019, 03:34
Re: Do you Beidou?Frank Reed20 Dec 2019, 03:12
Re: Do you Beidou?David C20 Dec 2019, 03:08
Re: Homemade plotting sheetsEd Popko20 Dec 2019, 00:54
Re: Air Almanac 2020 full pdf now available...Tracy Shrier20 Dec 2019, 01:38
Re: Homemade plotting sheetsDavid Pike19 Dec 2019, 23:52
Re: Time ballsBill B19 Dec 2019, 22:08
Re: Homemade plotting sheetsDavid Iwancio19 Dec 2019, 21:57
Re: Homemade plotting sheetsJohn D. Howard19 Dec 2019, 21:46
Re: Visiting local museum and CN-itemsDavid Pike19 Dec 2019, 21:16
Re: Homemade plotting sheetsDavid Pike19 Dec 2019, 21:04
Re: Homemade plotting sheetsTony Oz19 Dec 2019, 20:44
Re: Do you Beidou?Ed Popko19 Dec 2019, 20:27
Re: Do you Beidou?Frank Reed19 Dec 2019, 18:46
Homemade plotting sheetsMike Freeman19 Dec 2019, 18:12
Re: Visiting local museum and CN-itemsDavid Pike19 Dec 2019, 17:15
Re: Do you Beidou?Dave Walden19 Dec 2019, 16:19
Re: Visiting local museum and CN-itemsIgor S.19 Dec 2019, 08:53
Re: Do you Beidou?Sean C19 Dec 2019, 08:35
Re: Do you Beidou?Brad Morris19 Dec 2019, 03:24
Re: Do you Beidou?Robert Wyatt19 Dec 2019, 01:48
Re: Time ballsFrank Reed19 Dec 2019, 00:29
Do you Beidou?Frank Reed18 Dec 2019, 23:25
Re: Found sextant at local curiosity shop...Paul Saffo18 Dec 2019, 21:47
Re: Visiting local museum and CN-itemsDavid Pike18 Dec 2019, 20:35
Re: Found sextant at local curiosity shop...Thomas Klausen18 Dec 2019, 20:27
KM Plath rack brushMichael Cain18 Dec 2019, 19:15
Re: Visiting local museum and CN-itemsDavid Pike18 Dec 2019, 17:54
Time ballsRobin Stuart18 Dec 2019, 14:56
Re: Ramsden Sextant on eBayDavid Pike18 Dec 2019, 11:49
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCDavid Pike18 Dec 2019, 11:07
Re: Visiting local museum and CN-itemsAlexandre Eremenko18 Dec 2019, 09:12
Re: Visiting local museum and CN-itemsAlexandre Eremenko18 Dec 2019, 09:09
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCFrank Reed18 Dec 2019, 04:14
Re: Found sextant at local curiosity shop...Tom Sult18 Dec 2019, 03:56
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Sean Johnston18 Dec 2019, 03:54
Re: Found sextant at local curiosity shop...Frank Reed18 Dec 2019, 03:21
Found sextant at local curiosity shop...Thomas Klausen18 Dec 2019, 03:13
Visiting local museum and CN-itemsIgor S.17 Dec 2019, 22:50
Re: Ramsden Sextant on eBayDon Seltzer17 Dec 2019, 21:40
Re: CelesticompAlan S17 Dec 2019, 21:17
Re: Ramsden Sextant on eBayFrank Reed17 Dec 2019, 20:46
Ramsden Sextant on eBayDavid Pike17 Dec 2019, 20:24
Re: Time of full moonRobert Wyatt17 Dec 2019, 15:25
Re: B52 Bomber Automatic Astro Compass TeardownDavid Pike17 Dec 2019, 14:10
Re: B52 Bomber Automatic Astro Compass TeardownDavid Pike17 Dec 2019, 12:45
B52 Bomber Automatic Astro Compass TeardownDave Walden17 Dec 2019, 03:28
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCDavid Pike16 Dec 2019, 20:40
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Bob Goethe16 Dec 2019, 19:08
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Gary LaPook16 Dec 2019, 18:16
Change afoot for the footJim Hickey16 Dec 2019, 14:39
Re: CelesticompJeremy C16 Dec 2019, 13:44
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Ed Popko16 Dec 2019, 11:40
Re: Sun sights in foggy weatherIgor S.16 Dec 2019, 08:26
Re: Air Almanac 2020 full pdf now available...Michael Cain16 Dec 2019, 04:50
Re: Air Almanac 2020 full pdf now available...John D. Howard16 Dec 2019, 01:35
AIS and GPS spoofed in a new and concerning way near ShanghaiLu Abel16 Dec 2019, 00:59
Air Almanac 2020 full pdf now available...Frank Reed15 Dec 2019, 23:33
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCFrank Reed15 Dec 2019, 23:23
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCDavid Pike15 Dec 2019, 22:56
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCOmar Reis15 Dec 2019, 22:00
Re: Air Almanac 2020 still missing...Frank Reed15 Dec 2019, 19:34
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Gary LaPook15 Dec 2019, 19:32
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Sean Johnston15 Dec 2019, 17:48
Hygrometer mechanism...Dale Lichtblau15 Dec 2019, 04:42
Re: Time of full moonBill Ritchie14 Dec 2019, 22:39
Re: Google Maps restores Mercator ProjectionDavid Pike14 Dec 2019, 22:36
Google GlobeDavid Pike14 Dec 2019, 22:02
Re: CelesticompChris Guidry14 Dec 2019, 01:52
Re: Google Maps restores Mercator ProjectionFrank Reed14 Dec 2019, 18:17
Re: Time of full moonFrank Reed14 Dec 2019, 18:10
Re: Time of full moonAntoine Couëtte14 Dec 2019, 13:36
Re: Google Maps restores Mercator ProjectionDavid C14 Dec 2019, 07:36
Re: Google Maps restores Mercator ProjectionDavid C14 Dec 2019, 07:28
Re: Google Maps restores Mercator ProjectionDavid C14 Dec 2019, 07:06
Re: Time of full moonPaul Hirose14 Dec 2019, 06:10
Re: Google Maps restores Mercator ProjectionSean C14 Dec 2019, 05:49
Re: Google Maps restores Mercator ProjectionDavid Pike14 Dec 2019, 00:21
Re: Google Maps restores Mercator ProjectionDavid Pike14 Dec 2019, 00:04
Google Maps restores Mercator ProjectionFrank Reed13 Dec 2019, 23:18
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCFrank Reed13 Dec 2019, 21:02
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCDavid Pike13 Dec 2019, 20:31
Air Almanac 2020 still missing...Frank Reed13 Dec 2019, 19:33
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCHerman Dekker12 Dec 2019, 21:50
Re: Time of full moonLu Abel12 Dec 2019, 21:46
Re: Time of full moonFrank Reed12 Dec 2019, 20:38
Time of full moonFred Hebard12 Dec 2019, 19:07
Re: Sun sights in foggy weatherFrank Reed12 Dec 2019, 17:50
Re: Waves and DipMike Freeman12 Dec 2019, 17:28
Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCDavid Pike12 Dec 2019, 15:10
Re: Mars near ZubenelgenubiDavid Pike12 Dec 2019, 15:00
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris12 Dec 2019, 01:39
Re: Star to Star Distances taken on a Second Hand SextantPeter Monta11 Dec 2019, 22:56
Re: Waves and DipMichael Cain11 Dec 2019, 21:14
Re: Star to Star Distances taken on a Second Hand SextantFred Hebard11 Dec 2019, 19:52
Re: Waves and DipFrank Reed11 Dec 2019, 19:39
Mars near ZubenelgenubiFrank Reed11 Dec 2019, 19:02
Celnav apps for AndroidAndrés Ruiz11 Dec 2019, 12:52
Re: Waves and DipMike Freeman11 Dec 2019, 08:12
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris11 Dec 2019, 01:21
Re: Watching a star for IE: an obturator trick?Ed Popko11 Dec 2019, 00:23
Re: PolarisDavid Pike10 Dec 2019, 22:54
Re: Star to Star Distances taken on a Second Hand SextantFred Hebard10 Dec 2019, 22:51
Re: PolarisFrank Reed10 Dec 2019, 21:23
Re: Watching a star for IE: an obturator trick?Brad Morris10 Dec 2019, 21:21
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris10 Dec 2019, 21:17
Re: Star to Star Distances taken on a Second Hand SextantDavid Pike10 Dec 2019, 21:11
Re: Watching a star for IE: an obturator trick?Frank Reed10 Dec 2019, 19:48
Re: Watching a star for IE: an obturator trick?Tony Oz10 Dec 2019, 17:10
Re: Star to Star Distances taken on a Second Hand SextantFred Hebard10 Dec 2019, 16:43
Re: PolarisDavid Pike10 Dec 2019, 10:47
Re: Watching a star for IE: an obturator trick?Brad Morris10 Dec 2019, 02:03
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris10 Dec 2019, 01:40
Re: PolarisDavid Pike10 Dec 2019, 01:01
PolarisMike Freeman9 Dec 2019, 08:04
Re: Star to Star Distances taken on a Second Hand SextantFred Hebard9 Dec 2019, 03:15
Re: H. Hughes and son sextant pat 491Bill Morris9 Dec 2019, 02:35
Re: Waves and DipIgor S.9 Dec 2019, 00:54
Re: Star to Star Distances taken on a Second Hand SextantMichael Bradley8 Dec 2019, 22:00
Watching a star for IE: an obturator trick?Tony Oz8 Dec 2019, 17:53
Re: Star to Star Distances taken on a Second Hand SextantDavid Pike8 Dec 2019, 14:35
Re: Star to Star Distances taken on a Second Hand SextantAlexandre Eremenko8 Dec 2019, 13:51
Re: Waves and DipAlexandre Eremenko8 Dec 2019, 13:43
Re: Star to Star Distances taken on a Second Hand SextantPeter Monta8 Dec 2019, 07:58
Waves and DipMike Freeman8 Dec 2019, 06:12
Re: Shackleton expedition photosBrad Morris8 Dec 2019, 04:08
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris8 Dec 2019, 03:52
Re: Star to Star Distances taken on a Second Hand SextantDavid Pike7 Dec 2019, 21:32
Re: Star to Star Distances taken on a Second Hand SextantFred Hebard7 Dec 2019, 13:53
Shackleton expedition photosJackson McDonald7 Dec 2019, 12:06
Re: Star to Star Distances taken on a Second Hand SextantDavid Pike7 Dec 2019, 09:02
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris7 Dec 2019, 01:28
Re: Star to Star Distances taken on a Second Hand SextantPaul Hirose7 Dec 2019, 00:44
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris6 Dec 2019, 22:11
Re: Star to Star Distances taken on a Second Hand SextantDavid Pike6 Dec 2019, 20:18
Re: Leibniz's "Hanging Chain" - CatenaryDavid C6 Dec 2019, 05:02
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris6 Dec 2019, 04:59
Re: Leibniz's "Hanging Chain" - CatenaryDale Lichtblau5 Dec 2019, 18:41
Re: Star to Star Distances taken on a Second Hand SextantMichael Bradley5 Dec 2019, 16:48
Re: Equation of Time/MeridianSean C5 Dec 2019, 16:30
Re: Latitude by noon Sun sightMike Freeman5 Dec 2019, 06:48
Re: Star to Star Distances taken on a Second Hand SextantBrad Morris5 Dec 2019, 01:12
Re: Star to Star Distances taken on a Second Hand SextantHewitt Schlereth5 Dec 2019, 00:10
Re: Star to Star Distances taken on a Second Hand SextantMichael Bradley4 Dec 2019, 23:53
Re: Star to Star Distances taken on a Second Hand SextantMichael Bradley4 Dec 2019, 22:26
Re: Star to Star Distances taken on a Second Hand SextantAlexandre Eremenko4 Dec 2019, 21:13
Star to Star Distances taken on a Second Hand SextantMichael Bradley4 Dec 2019, 20:28
Re: Latitude by noon Sun sightAlexandre Eremenko4 Dec 2019, 19:48
Lunars, Mystic Seaport, this weekend (Dec. 7-8)Frank Reed4 Dec 2019, 18:59
Re: H. Hughes and son sextant pat 491Frank Reed4 Dec 2019, 18:49
Re: Latitude by noon Sun sightJohn D. Howard4 Dec 2019, 17:49
Re: H. Hughes and son sextant pat 491Brad Morris4 Dec 2019, 17:48
Re: Latitude by noon Sun sightFrank Reed4 Dec 2019, 17:34
Re: Equation of Time/MeridianFrank Reed4 Dec 2019, 17:19
Re: H. Hughes and son sextant pat 491Brad Morris4 Dec 2019, 16:08
Re: H. Hughes and son sextant pat 491David Pike4 Dec 2019, 09:24
Re: Latitude by noon Sun sightMike Freeman4 Dec 2019, 07:58
Re: Latitude by noon Sun sightMike Freeman4 Dec 2019, 07:39
Re: Latitude by noon Sun sightMike Freeman4 Dec 2019, 07:25
Re: Equation of Time/MeridianSean C4 Dec 2019, 06:06
Re: Latitude by noon Sun sightGary LaPook3 Dec 2019, 19:13
Re: Latitude by noon Sun sightGary LaPook3 Dec 2019, 19:05
Re: Latitude by noon Sun sightAlexandre Eremenko3 Dec 2019, 18:37
Re: Latitude by noon Sun sightFrank Reed3 Dec 2019, 17:38
Re: H. Hughes and son sextant pat 491Frank Reed3 Dec 2019, 17:30
Latitude by noon Sun sightMike Freeman3 Dec 2019, 17:13
Re: H. Hughes and son sextant pat 491David Pike3 Dec 2019, 09:08
Re: Equation of Time/MeridianJohn D. Howard3 Dec 2019, 01:53
Re: H. Hughes and son sextant pat 491Brad Morris2 Dec 2019, 23:15
Re: Equation of Time/MeridianDavid Iwancio2 Dec 2019, 20:16
Re: H. Hughes and son sextant pat 491David Pike2 Dec 2019, 12:53
Sun sights in foggy weatherIgor S.2 Dec 2019, 12:47
Re: Equation of Time/MeridianMike Freeman2 Dec 2019, 08:20
Re: S-ectorBrad Morris1 Dec 2019, 22:34
Re: S-ectorBrad Morris1 Dec 2019, 22:14
Re: S-ectorFred Hebard1 Dec 2019, 21:34
Re: S-ectorFrank Reed1 Dec 2019, 20:28
Re: LhaFrank Reed1 Dec 2019, 20:16
Re: S-ectorAlexandre Eremenko1 Dec 2019, 20:12
LHAAonghus O Concheanainn1 Dec 2019, 19:23
Re: Celestial Navigation Data from USNO--alternativeFrank Reed1 Dec 2019, 18:51
Re: S-ectorBrad Morris1 Dec 2019, 17:59
S-ectorBrad Morris1 Dec 2019, 17:17
Re: Equation of Time/MeridianJohn D. Howard1 Dec 2019, 16:56
Horizontal Angles while KayakingGreg Rudzinski1 Dec 2019, 16:16
Re: Celestial Navigation Data from USNO--alternativeJim Rives1 Dec 2019, 15:31
H. Hughes and son sextant pat 491Sam Loveday1 Dec 2019, 07:29
Equation of Time/MeridianMike Freeman1 Dec 2019, 06:33
The Spirule for navigationDavid C1 Dec 2019, 00:21

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