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

January, 2021

Index includes 255 messages. Sorted alphabetically by subject.

                    
1946 US Coast Guard SextantCarl Main29 Jan 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
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
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
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
Re: Astro slide ruleAlan S5 Jan 2021, 00:24
Re: Astro slide ruleAlan S27 Jan 2021, 00:23
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
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
Bridge sextantsFrank Reed7 Jan 2021, 22:47
Re: Bridge sextantsMurray Buckman8 Jan 2021, 00:06
Re: Bridge sextantsMurray Buckman8 Jan 2021, 00:26
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
Celestial Navigation 19th Century Methods WorkshopFrank Reed26 Jan 2021, 18:46
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
Computing Lunar Comparing Distances by "Plane Sailing"David Iwancio7 Jan 2021, 12:18
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
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
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
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
Flat BygraveAlan S19 Jan 2021, 04:16
Re: Flat BygraveGary LaPook19 Jan 2021, 20:09
Re: Flat BygraveAlan S19 Jan 2021, 22:05
Free Downloadable Electronic Navigation GuideDavid Pike15 Jan 2021, 21:11
Re: Free Downloadable Electronic Navigation GuideAlan S15 Jan 2021, 23:27
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
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
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
Jan Huygen van LinschotenBob Goethe21 Jan 2021, 19:11
Kollsman D1 Periscopic Sextant with mountRobert Swartz16 Jan 2021, 06:39
Kollsman Sextants' NomenclatureRobert Swartz16 Jan 2021, 06:28
Re: Lifeboat sextant instruction bookletAlan S7 Jan 2021, 18:54
Re: Lifeboat sextant instruction bookletAlan S8 Jan 2021, 04:01
M. Low USN MKIII MOD-0 - Illumination issueJohn Rizzuto20 Jan 2021, 22:55
Modern Celestial ONE: Sextants & Sun SightsFrank Reed22 Jan 2021, 17:10
Re: Modern Celestial ONE: Sextants & Sun SightsSam Lyness23 Jan 2021, 17:05
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
Navigation star namesFrank Reed17 Jan 2021, 04:13
Re: Navigation star namesFrank Reed18 Jan 2021, 04:25
NavList message volumeFrank Reed2 Jan 2021, 00:00
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
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
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
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
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
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
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
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
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
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
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
RE. Kollsman MA2 SextantRobert Swartz16 Jan 2021, 06:08
Reconditioned Link A-12 Aircraft Bubble Sextant For SaleRobert Swartz23 Jan 2021, 21:35
Reconditioning SextantsRobert Swartz4 Jan 2021, 04:11
Reflecting CircleBill Ritchie14 Jan 2021, 20:51
RIN Submarine Navigation and Ocean Sailing webinars are now on YouTube.David Pike7 Jan 2021, 15:02
Royal Observatory workshopFrank Reed4 Jan 2021, 17:12
Re: Royal Observatory workshopMichael Bradley4 Jan 2021, 21:25
Solar Eclipses in high latitudesBob Crawley12 Jan 2021, 09:43
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
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
Tatakoto subSunFrank Reed30 Jan 2021, 01:09
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 Past, Present and Future of Nautical Information for Leisure SailorsDavid Pike16 Jan 2021, 18:35
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
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
Two More free WebinarsDavid Pike23 Jan 2021, 19:37
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
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
Winter celestial navigation workshopsFrank Reed13 Jan 2021, 21:21
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

Index includes 255 messages.

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