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

March, 2020

Index includes 250 messages. Sorted alphabetically by author.

                    
LAN calculations for GHAAdam Frolic26 Mar 2020, 19:28
Re: ChronographAlan S5 Mar 2020, 01:57
Re: Longitude by Time Sight Using a Slide RuleAlan S22 Mar 2020, 22:32
Re: Longitude by Time Sight Using a Slide RuleAlan S23 Mar 2020, 02:37
Re: d correctionAlan S30 Mar 2020, 20:59
Air Almanac and AP 2020 availableAlexander Duytschaever30 Mar 2020, 13:35
Re: Navigate to this islandAlexandre Eremenko19 Mar 2020, 20:39
Re: Please help to identify a sextantAlexandre Eremenko20 Mar 2020, 01:07
Re: Maskelyne: Astronomer RoyalAlexandre Eremenko25 Mar 2020, 20:54
Re: Smart Phone CNAndrés Ruiz5 Mar 2020, 19:50
Re: Using the sun's direct and reflected image to determine a sextant's IEAntoine Couëtte11 Mar 2020, 19:09
Re: Index error vs. index correctionAntoine Couëtte20 Mar 2020, 19:36
Re: Index error vs. index correctionAntoine Couëtte21 Mar 2020, 20:22
Re: Index error vs. index correctionAntoine Couëtte22 Mar 2020, 19:07
Re: Index error vs. index correctionAntoine Couëtte22 Mar 2020, 19:17
Re: Index error vs. index correctionAntoine Couëtte23 Mar 2020, 16:27
Minimum geocentric Saturn-Mars apparent angular DistanceAntoine Couëtte31 Mar 2020, 07:07
Re: d correctionBarrie Heald29 Mar 2020, 14:05
Re: d correctionBarrie Heald30 Mar 2020, 02:33
Re: Kelvin Hughes sounding sextant !Bill Morris17 Mar 2020, 06:34
Modern Bygrave Slide Rule EmulatorBill Ritchie5 Mar 2020, 20:45
Re: Modern Bygrave Slide Rule EmulatorBill Ritchie18 Mar 2020, 18:53
Re: Modern Bygrave Slide Rule EmulatorBill Ritchie21 Mar 2020, 23:05
Re: Modern Bygrave Slide Rule EmulatorBob Crawley7 Mar 2020, 09:24
(Almost) no shadowBob Miorelli20 Mar 2020, 20:13
Re: Sunrise Time Sight /Amplitude LOPBrian Walton3 Mar 2020, 09:46
Maskelyne: Astronomer RoyalCharles McElhill23 Mar 2020, 16:33
Re: Maskelyne: Astronomer RoyalCharles McElhill24 Mar 2020, 12:38
Re: Maskelyne: Astronomer RoyalCharles McElhill25 Mar 2020, 21:33
Re: A12 vs A8-A sextantsChris Caswell23 Mar 2020, 21:43
LunarsChris Lamousin9 Mar 2020, 03:00
Re: Royal Museums Greenwich closedChris Willmes17 Mar 2020, 20:38
Re: Index error vs. index correctionDave Walden21 Mar 2020, 13:04
Re: [OT] Browser trickDavid C2 Mar 2020, 20:41
Re: Today's sub-Sun pointDavid C3 Mar 2020, 00:40
Time of SunsetDavid C13 Mar 2020, 07:48
Re: Time of SunsetDavid C13 Mar 2020, 21:26
Re: Royal Museums Greenwich closedDavid C18 Mar 2020, 04:53
Re: GPS Anti Spoof ProDavid C27 Mar 2020, 06:24
Re: GPS Anti Spoof ProDavid C27 Mar 2020, 06:28
Re: GPS Anti Spoof ProDavid C27 Mar 2020, 06:41
Re: Venus in daylightDavid C28 Mar 2020, 02:39
Re: Venus in daylightDavid C28 Mar 2020, 23:08
Re: Venus in daylightDavid C28 Mar 2020, 23:17
Re: Venus in daylightDavid C29 Mar 2020, 21:33
Nautical Almanac AppDavid C30 Mar 2020, 21:44
Re: Venus in daylightDavid C31 Mar 2020, 04:38
Re: Bagnold Sun CompassDavid C31 Mar 2020, 06:16
Re: Venus in daylightDavid C31 Mar 2020, 21:30
Re: Venus in daylightDavid C31 Mar 2020, 21:36
Re: ChronographDavid Iwancio5 Mar 2020, 03:46
Re: Choosing right A-10: how to?David Pike1 Mar 2020, 20:01
Re: [OT] Browser trickDavid Pike1 Mar 2020, 22:24
Re: Choosing right A-10: how to?David Pike2 Mar 2020, 11:20
Re: Archive of HMS Bounty fatefulvoyage.comDavid Pike3 Mar 2020, 20:40
Re: Grand Princess and Plague flagDavid Pike17 Mar 2020, 20:02
Navigation webinarsDavid Pike19 Mar 2020, 21:36
Re: Please help to identify a sextantDavid Pike20 Mar 2020, 21:15
Re: Please help to identify a sextantDavid Pike21 Mar 2020, 09:57
Re: Please help to identify a sextantDavid Pike21 Mar 2020, 22:15
Re: Please help to identify a sextantDavid Pike22 Mar 2020, 10:28
Using Photographs from the wwwDavid Pike22 Mar 2020, 13:37
Re: Maskelyne: Astronomer RoyalDavid Pike24 Mar 2020, 21:16
Re: GPS Anti Spoof ProDavid Pike26 Mar 2020, 23:11
Re: GPS Anti Spoof ProDavid Pike27 Mar 2020, 08:40
Re: Venus in daylightDavid Pike29 Mar 2020, 09:46
Re: Navigation webinarsDavid Pike31 Mar 2020, 13:29
Re: Google Maps and Street viewDoug Faunt4 Mar 2020, 16:56
Re: Another SpaceX launch: photo celestialDoug Faunt12 Mar 2020, 20:00
Re: Grand Princess and Plague flagDoug Faunt17 Mar 2020, 20:12
Re: Maskelyne: Astronomer RoyalDoug Faunt26 Mar 2020, 00:16
Re: Venus in daylightDoug Faunt29 Mar 2020, 16:50
Re: Venus in daylightDoug Faunt29 Mar 2020, 16:52
Re: ChronographDustin Baenen4 Mar 2020, 15:55
Re: ChronographDustin Baenen4 Mar 2020, 21:21
Re: A12 vs A8-A sextantsDustin Baenen23 Mar 2020, 13:42
Re: Smart Phone CNEd Hlywa5 Mar 2020, 17:56
Using the sun's direct and reflected image to determine a sextant's IEEd Popko9 Mar 2020, 12:59
Re: Using the sun's direct and reflected image to determine a sextant's IEEd Popko9 Mar 2020, 20:23
Re: Using the sun's direct and reflected image to determine a sextant's IEEd Popko10 Mar 2020, 11:46
Re: Kelvin Hughes sounding sextant !Ed Popko17 Mar 2020, 16:51
GPS Anti Spoof ProEd Popko24 Mar 2020, 10:59
Re: Modern Bygrave Slide Rule EmulatorFrancis Upchurch7 Mar 2020, 07:52
Re: Modern Bygrave Slide Rule EmulatorFrancis Upchurch7 Mar 2020, 21:51
Re: Modern Bygrave Slide Rule EmulatorFrancis Upchurch19 Mar 2020, 10:52
Re: Longitude by Time Sight Using a Slide RuleFrancis Upchurch23 Mar 2020, 06:39
Re: Maskelyne: Astronomer RoyalFrancis Upchurch23 Mar 2020, 17:28
Kelvin Hughes sounding sextant !Frank Atkins9 Mar 2020, 09:25
Re: Kelvin Hughes sounding sextant !Frank Atkins12 Mar 2020, 12:09
Re: Kelvin Hughes sounding sextant !Frank Atkins13 Mar 2020, 23:28
Re: Kelvin Hughes sounding sextant !Frank Atkins17 Mar 2020, 22:30
Today's sub-Sun pointFrank Reed1 Mar 2020, 17:57
Re: [OT] Browser trickFrank Reed1 Mar 2020, 21:22
Archive of HMS Bounty fatefulvoyage.comFrank Reed3 Mar 2020, 20:10
Re: Air Almanac 2020 full pdf now available...Frank Reed4 Mar 2020, 01:42
Re: Today's sub-Sun pointFrank Reed4 Mar 2020, 02:34
Re: Longitudes greater than 180Frank Reed4 Mar 2020, 03:24
Another SpaceX launch: photo celestialFrank Reed8 Mar 2020, 01:03
Re: Another SpaceX launch: photo celestialFrank Reed8 Mar 2020, 22:36
Re: GPS Anti Spoof: time to update...Frank Reed12 Mar 2020, 17:29
Re: Another SpaceX launch: photo celestialFrank Reed12 Mar 2020, 19:41
Royal Museums Greenwich closedFrank Reed17 Mar 2020, 19:55
GMT by Lunar Distance in GuatemalaFrank Reed17 Mar 2020, 19:59
Re: GPS Anti Spoof: time to update...Frank Reed17 Mar 2020, 21:53
Navigate to this islandFrank Reed19 Mar 2020, 19:20
Tabulate Lunar Distances by GHAFrank Reed21 Mar 2020, 19:13
Re: Maskelyne: Astronomer RoyalFrank Reed23 Mar 2020, 21:42
Happy Birthday, John HarrisonFrank Reed25 Mar 2020, 03:24
Re: GPS Anti Spoof ProFrank Reed25 Mar 2020, 03:36
Re: Maskelyne: Astronomer RoyalFrank Reed25 Mar 2020, 04:20
Re: GPS Anti Spoof ProFrank Reed27 Mar 2020, 00:10
Venus in daylightFrank Reed27 Mar 2020, 22:19
Re: Venus in daylightFrank Reed28 Mar 2020, 01:53
Re: Venus in daylightFrank Reed28 Mar 2020, 03:27
Re: Venus in daylightFrank Reed28 Mar 2020, 19:54
Celestial in the Age of Sail, April 7-9, onlineFrank Reed31 Mar 2020, 18:17
Re: Venus in daylightFrank Reed31 Mar 2020, 20:47
Re: Venus in daylightFrank Reed31 Mar 2020, 21:54
Re: Lunars: optimal angular distancesFrank Reed31 Mar 2020, 22:19
Re: Sun-Venus distance observationFrank Reed31 Mar 2020, 22:29
Re: Choosing right A-10: how to?Gary LaPook2 Mar 2020, 08:13
Re: Modern Bygrave Slide Rule EmulatorGary LaPook6 Mar 2020, 19:06
Re: Modern Bygrave Slide Rule EmulatorGary LaPook10 Mar 2020, 20:42
Re: H.O. 249: rounding HoGary LaPook18 Mar 2020, 07:36
Re: Index error vs. index correctionGary LaPook22 Mar 2020, 01:39
Re: A12 vs A8-A sextantsGary LaPook22 Mar 2020, 19:02
Re: A12 vs A8-A sextantsGary LaPook22 Mar 2020, 19:06
Re: A12 vs A8-A sextantsGary LaPook24 Mar 2020, 03:30
Re: Longitudes greater than 180Geoffrey Kolbe4 Mar 2020, 07:44
Re: AH - sandwich (working concept)Geoffrey Kolbe5 Mar 2020, 07:06
Re: ChronographGeoffrey Kolbe5 Mar 2020, 09:14
Re: Please help to identify a sextantGeoffrey Kolbe21 Mar 2020, 20:20
Re: Maskelyne: Astronomer RoyalGeoffrey Kolbe26 Mar 2020, 06:13
Sunrise Time Sight /Amplitude LOPGreg Rudzinski1 Mar 2020, 21:49
Smart Phone CNGreg Rudzinski2 Mar 2020, 14:12
Re: Smart Phone CNGreg Rudzinski3 Mar 2020, 15:47
Re: ChronographGreg Rudzinski4 Mar 2020, 14:20
Re: ChronographGreg Rudzinski4 Mar 2020, 14:31
Re: ChronographGreg Rudzinski4 Mar 2020, 15:16
Re: ChronographGreg Rudzinski4 Mar 2020, 19:18
Re: Smart Phone CNGreg Rudzinski5 Mar 2020, 02:52
Re: Smart Phone CNGreg Rudzinski5 Mar 2020, 19:51
Re: Modern Bygrave Slide Rule EmulatorGreg Rudzinski6 Mar 2020, 20:49
Re: Smart Phone CNGreg Rudzinski6 Mar 2020, 23:05
Re: Smart Phone CNGreg Rudzinski7 Mar 2020, 10:55
Custom Ex-Meridian Table for Slide RuleGreg Rudzinski8 Mar 2020, 18:10
Re: Custom Ex-Meridian Table for Slide RuleGreg Rudzinski9 Mar 2020, 02:07
Re: Using the sun's direct and reflected image to determine a sextant's IEGreg Rudzinski9 Mar 2020, 17:21
Re: Using the sun's direct and reflected image to determine a sextant's IEGreg Rudzinski9 Mar 2020, 19:39
Custom Compact Sight Reduction TablesGreg Rudzinski9 Mar 2020, 22:13
Re: Using the sun's direct and reflected image to determine a sextant's IEGreg Rudzinski9 Mar 2020, 23:34
Re: Navigate to this islandGreg Rudzinski19 Mar 2020, 20:08
Re: Navigate to this islandGreg Rudzinski19 Mar 2020, 20:10
Re: Longitude by Time Sight Using a Slide RuleGreg Rudzinski22 Mar 2020, 23:19
Re: Venus in daylightGreg Rudzinski29 Mar 2020, 00:41
Re: Sun-Venus distance observationHerman Dekker27 Mar 2020, 19:46
AH - sandwich (working concept)Igor S.4 Mar 2020, 23:45
Re: AH - sandwich (working concept)Igor S.6 Mar 2020, 00:00
H.O. 249: rounding HoIgor S.17 Mar 2020, 22:56
Re: Please help to identify a sextantIgor S.19 Mar 2020, 23:35
Re: Sun-Venus distance observationIgor S.27 Mar 2020, 10:58
Re: Sun-Venus distance observationIgor S.29 Mar 2020, 21:33
Re: Sun-Venus distance observationIgor S.29 Mar 2020, 21:56
Re: Navigate to this islandJackson McDonald19 Mar 2020, 20:15
Re: Maskelyne: Astronomer RoyalJackson McDonald23 Mar 2020, 18:11
Re: Navigate to this islandJames F Campbell19 Mar 2020, 20:20
ChronographJason Owens2 Mar 2020, 22:41
ChronographsJason Owens4 Mar 2020, 03:37
Re: Kelvin Hughes sounding sextant !Jean-Philippe Planas17 Mar 2020, 17:29
Re: Calculating the time when GHA is equals zero?Jeremy C12 Mar 2020, 08:06
Re: Calculating the time when GHA is equals zero?Jeremy C13 Mar 2020, 12:22
Re: Calculating the time when GHA is equals zero?Jeremy C14 Mar 2020, 04:35
Re: Calculating the time when GHA is equals zero?Jeremy C14 Mar 2020, 10:39
Re: Grand Princess and Plague flagJeremy C18 Mar 2020, 09:08
Re: Grand Princess and Plague flagJeremy C18 Mar 2020, 09:13
Re: Today's sub-Sun pointJohn D. Howard3 Mar 2020, 13:11
Re: Grand Princess and Plague flagLu Abel17 Mar 2020, 18:47
Re: Kelvin Hughes sounding sextant !Michael Bradley11 Mar 2020, 23:37
Re: Kelvin Hughes sounding sextant !Michael Bradley12 Mar 2020, 12:04
Re: ChronographMichael Cain4 Mar 2020, 16:25
Re: H.O. 249: rounding HoMichael Jones20 Mar 2020, 04:26
A12 vs A8-A sextantsMichael Jones22 Mar 2020, 13:51
Re: A12 vs A8-A sextantsMichael Jones22 Mar 2020, 21:06
Re: A12 vs A8-A sextantsMichael Jones23 Mar 2020, 19:33
Bagnold Sun CompassMichael Jones31 Mar 2020, 04:00
Re: ChronographNick M4 Mar 2020, 13:46
Longitudes greater than 180Paul Hirose3 Mar 2020, 22:07
Re: Using the sun's direct and reflected image to determine a sextant's IEPaul Hirose10 Mar 2020, 06:03
Re: Kelvin Hughes sounding sextant !Paul Hirose13 Mar 2020, 21:36
Index error vs. index correctionPaul Hirose13 Mar 2020, 21:38
Re: Calculating the time when GHA is equals zero?Paul Hirose14 Mar 2020, 20:21
Re: H.O. 249: rounding HoPaul Hirose20 Mar 2020, 18:43
Re: Today's sub-Sun pointPaul Saffo2 Mar 2020, 17:54
Grand Princess and Plague flagPaul Saffo17 Mar 2020, 04:45
Sextant problem gonePaul Werner31 Mar 2020, 12:09
Re: Royal Museums Greenwich closedPeter Monta17 Mar 2020, 23:40
Re: Please help to identify a sextantPeter Monta21 Mar 2020, 23:25
Re: A12 vs A8-A sextantsRobert Swartz25 Mar 2020, 15:44
Bubble SextantsRobert Swartz25 Mar 2020, 18:57
Re: Bubble SextantsRobert Swartz26 Mar 2020, 00:37
Re: Longitudes greater than 180Robert VanderPol II4 Mar 2020, 14:02
Re: Captain Cook & celestial navigationRobin Stuart13 Mar 2020, 16:29
Re: Index error vs. index correctionRobin Stuart22 Mar 2020, 13:49
Re: Index error vs. index correctionRobin Stuart22 Mar 2020, 20:54
Re: Captain Cook & celestial navigationRoger W. Sinnott13 Mar 2020, 17:56
Re: Venus in daylightSean C29 Mar 2020, 04:40
Re: Today's sub-Sun pointSteve E. Bryant3 Mar 2020, 03:36
Re: Today's sub-Sun pointSteve E. Bryant3 Mar 2020, 19:26
Re: Today's sub-Sun pointSteve E. Bryant4 Mar 2020, 06:29
Calculating the time when GHA is equals zero?Steve E. Bryant9 Mar 2020, 06:14
Re: Calculating the time when GHA is equals zero?Steve E. Bryant11 Mar 2020, 06:23
Re: Calculating the time when GHA is equals zero?Steve E. Bryant13 Mar 2020, 03:20
Re: Calculating the time when GHA is equals zero?Steve E. Bryant14 Mar 2020, 06:18
Re: Calculating the time when GHA is equals zero?Steve E. Bryant14 Mar 2020, 17:45
Re: Calculating the time when GHA is equals zero?Steve E. Bryant21 Mar 2020, 00:15
Lunars: optimal angular distancesSteve E. Bryant31 Mar 2020, 18:55
Re: Another SpaceX launch: photo celestialThomas Spidle13 Mar 2020, 01:54
Re: Smart Phone CNTom Sult7 Mar 2020, 03:25
Re: Choosing right A-10: how to?Tony Oz2 Mar 2020, 08:42
Re: Today's sub-Sun pointTony Oz3 Mar 2020, 08:18
Re: ChronographTony Oz4 Mar 2020, 20:28
Re: Calculating the time when GHA is equals zero?Tony Oz9 Mar 2020, 18:59
Re: Using the sun's direct and reflected image to determine a sextant's IETony Oz9 Mar 2020, 19:26
Re: Using the sun's direct and reflected image to determine a sextant's IETony Oz10 Mar 2020, 13:41
Re: Using the sun's direct and reflected image to determine a sextant's IETony Oz10 Mar 2020, 18:47
Re: Calculating the time when GHA is equals zero?Tony Oz11 Mar 2020, 20:13
Re: Calculating the time when GHA is equals zero?Tony Oz12 Mar 2020, 18:02
Re: Calculating the time when GHA is equals zero?Tony Oz13 Mar 2020, 19:37
Re: Calculating the time when GHA is equals zero?Tony Oz13 Mar 2020, 22:58
Re: Calculating the time when GHA is equals zero?Tony Oz14 Mar 2020, 19:07
Re: Calculating the time when GHA is equals zero?Tony Oz16 Mar 2020, 10:58
Re: Navigate to this islandTony Oz19 Mar 2020, 20:24
Please help to identify a sextantTony Oz19 Mar 2020, 21:04
Re: Please help to identify a sextantTony Oz20 Mar 2020, 08:45
Re: Calculating the time when GHA is equals zero?Tony Oz21 Mar 2020, 07:08
Re: Tabulate Lunar Distances by GHATony Oz21 Mar 2020, 19:56
Re: Tabulate Lunar Distances by GHATony Oz21 Mar 2020, 20:03
Re: Please help to identify a sextantTony Oz21 Mar 2020, 20:43
Sun-Venus distance observationTony Oz22 Mar 2020, 20:26
Re: Sun-Venus distance observationTony Oz23 Mar 2020, 11:58
Re: LAN calculations for GHATony Oz26 Mar 2020, 22:54
Re: Sun-Venus distance observationTony Oz27 Mar 2020, 19:35
Re: Venus in daylightTony Oz28 Mar 2020, 18:57
Re: Venus in daylightTony Oz28 Mar 2020, 20:14
Re: Venus in daylightTony Oz29 Mar 2020, 13:21
Re: d correctionTony Oz29 Mar 2020, 16:25
Re: d correctionTony Oz30 Mar 2020, 09:11
Re: d correctionTony Oz30 Mar 2020, 21:38
Re: [OT] Browser trickWolfgang Köberer1 Mar 2020, 18:08
Re: Maskelyne: Astronomer RoyalWolfgang Köberer25 Mar 2020, 16:53

Index includes 250 messages.

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