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

January, 2015 to December, 2024

Index includes 249 messages. Sorted by date, recent messages first.

                    
Re: Index error test with Davis whole horizon mirrorHerman Dekker5 Oct 2023, 15:03
Re: Mirror horizonHerman Dekker2 Sep 2023, 06:09
Re: Mirror horizonHerman Dekker1 Sep 2023, 18:01
Re: Longitude Sight Calculation with Ageton Classic?Herman Dekker30 Aug 2023, 17:40
Longitude Sight Calculation with Ageton Classic?Herman Dekker26 Aug 2023, 10:39
Re: Position fix by visual satellite pass. How to identify the bright StarHerman Dekker7 Aug 2023, 17:19
Position fix by visual satellite pass. How to identify the bright StarHerman Dekker5 Aug 2023, 15:18
Re: 2024 Nautical AlmanacHerman Dekker21 Jul 2023, 20:09
Re: Flat BygraveHerman Dekker7 Jul 2023, 07:14
Re: Polaris plus one For Huub RobroekHerman Dekker5 Jul 2023, 19:45
Re: Puzzle continues: After Capella, Vega behind your backHerman Dekker1 Jul 2023, 19:55
Re: Puzzle continues: After Capella, Vega behind your backHerman Dekker30 Jun 2023, 21:11
Re: Polaris plus oneHerman Dekker26 Jun 2023, 12:17
Re: Distant HorizonHerman Dekker20 May 2023, 07:14
Re: Distant HorizonHerman Dekker18 May 2023, 07:27
Re: Why Apps/Tools does not work on reednavigation.comHerman Dekker5 Apr 2023, 10:14
Re: Why Apps/Tools does not work on reednavigation.comHerman Dekker4 Apr 2023, 16:50
Search functionHerman Dekker1 Jan 2023, 04:36
Re: Sights with Davis Mk 15Herman Dekker25 Dec 2022, 17:08
Re: Star sight planning with star chartsHerman Dekker11 Dec 2022, 11:14
Again the Tilde ~ understandingHerman Dekker24 Nov 2022, 09:45
Re: Lunar Distance tables and charts for November 2022Herman Dekker26 Oct 2022, 20:21
Re:Nautical Almanac direct US purchaseHerman Dekker25 Oct 2022, 07:57
Re: Lunar Distance tables and charts for November 2022Herman Dekker23 Oct 2022, 12:19
Re: The Book of the Sextant, Hughes, 1915Herman Dekker21 Oct 2022, 09:29
Re: Vertical Lunar challenge examplesHerman Dekker18 Oct 2022, 09:06
What is better 5 times 3 or 3 times 5 sights?Herman Dekker10 Oct 2022, 07:32
Re: Antique compass fluid, handheld pelorusHerman Dekker8 Oct 2022, 04:11
Re: A Liechtenstein LunarHerman Dekker23 Aug 2022, 08:33
Re: Lunars rate of change: geocentric and topocentricHerman Dekker17 Aug 2022, 15:15
Re: A Liechtenstein LunarHerman Dekker9 Aug 2022, 12:45
M.O.A. to Degrees wonderingHerman Dekker6 Aug 2022, 08:15
Re: For want of a chronometerHerman Dekker1 Jun 2022, 13:26
Re: Freiberger sextant with prismHerman Dekker23 May 2022, 13:29
Re: Lunar Distance Charts and Tables - Jun 2020Herman Dekker18 May 2022, 07:38
Re: Lunar Distance Charts and Tables - Jun 2022Herman Dekker18 May 2022, 07:20
Refraction:Which formula for Heights below 15°Herman Dekker16 May 2022, 20:26
Re: Lunar Distance Charts and Tables - Jun 2020Herman Dekker16 May 2022, 09:32
Re: Hints2Travellers 1883: graphical LD clearing?Herman Dekker11 May 2022, 19:49
Re: US Air Almanac 2022Herman Dekker13 Mar 2022, 11:41
Re: USNO siteHerman Dekker26 Jan 2022, 15:13
Re: International Date Line and Earhart/NoonanHerman Dekker26 Jan 2022, 10:03
Re:DIY Starfinder - a lockdown projectHerman Dekker21 Dec 2021, 08:38
Re:DIY Starfinder - a lockdown projectHerman Dekker15 Dec 2021, 10:39
Re:DIY Starfinder - a lockdown projectHerman Dekker13 Dec 2021, 20:25
Re: Celnav.nl is no more? Pity!Herman Dekker3 Dec 2021, 15:39
Re: Kollsman Aircraft SextantsHerman Dekker3 Dec 2021, 07:46
Re: Celnav.nl is no more? Pity!Herman Dekker3 Dec 2021, 00:29
Re: Bare essentialsHerman Dekker23 Nov 2021, 09:03
Re: AM and PM time sightsHerman Dekker12 Nov 2021, 13:36
AM and PM time sightsHerman Dekker10 Nov 2021, 10:18
Re: AM and PM time sightsHerman Dekker9 Nov 2021, 21:06
Re: Tomorrow is Sun fast dayHerman Dekker2 Nov 2021, 19:39
Re: Moonrise over Connecticut, 19 October 2021Herman Dekker24 Oct 2021, 10:20
Re: Freiberger Yacht Sextant Case Mod.Herman Dekker18 Oct 2021, 11:10
Freiberger Yacht Sextant Case Mod.Herman Dekker16 Oct 2021, 16:48
Re: Finding IC for A-12 bubble sextantsHerman Dekker9 Oct 2021, 09:51
Re: Finding IC for A-12 bubble sextants+ AntiSpoofHerman Dekker7 Oct 2021, 17:01
Re: Side error is not a real errorHerman Dekker28 Sep 2021, 20:53
Re: Side error is not a real errorHerman Dekker28 Sep 2021, 16:27
Re: IE determination Freiberger Yacht Sextant.Herman Dekker27 Sep 2021, 13:40
Re: IE determination Freiberger Yacht Sextant.Herman Dekker27 Sep 2021, 06:50
Re: IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 20:13
Re: IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 17:45
IE determination Freiberger Yacht SextantHerman Dekker26 Sep 2021, 06:53
IE determination Freiberger Yacht Sextant.Herman Dekker24 Sep 2021, 14:36
Re: Compare Methods: Lat/Lon Near NoonHerman Dekker15 Sep 2021, 20:40
Re: Eldridge tide tables sun ephemerisHerman Dekker3 Sep 2021, 07:03
Cheapest Scientific CalculatorHerman Dekker28 Aug 2021, 07:57
Re: Degree sign in WindowsHerman Dekker8 Aug 2021, 13:21
Re: Degree sign in WindowsHerman Dekker7 Aug 2021, 07:10
Re: Sun SD comparison photosHerman Dekker10 Jul 2021, 19:41
Re: Universal Plotting Sheet and Weir diagramHerman Dekker24 May 2021, 08:33
Re: Universal Plotting Sheet and Weir diagramHerman Dekker23 May 2021, 08:46
Re: Digital Aries clockHerman Dekker6 May 2021, 07:25
Re: Digital Aries clockHerman Dekker4 May 2021, 10:51
Digital Aries clockHerman Dekker3 May 2021, 08:02
Ebbco Sextant infoHerman Dekker27 Mar 2021, 14:36
Navigation Progs from NewZealand.Herman Dekker11 Mar 2021, 10:03
Re: Davis WorksheetsHerman Dekker11 Mar 2021, 08:55
Re: Push out laser cut plywood models from ChinaHerman Dekker1 Mar 2021, 17:47
Re: Office Hours Ageton ClassicHerman Dekker6 Feb 2021, 15:46
Office Hours Ageton ClassicHerman Dekker6 Feb 2021, 07:04
Re: AstrolabesHerman Dekker26 Jan 2021, 08:19
Re: Sun's SD to 0.01' (-ish) from Nautical AlmanacHerman Dekker12 Jan 2021, 17:50
Re: Excel AlmanacHerman Dekker7 Jan 2021, 18:37
Re: Excel AlmanacHerman Dekker6 Jan 2021, 15:13
Re: Christmas week QuizzesHerman Dekker26 Dec 2020, 21:32
Re: 2021 Air Almanac pdfHerman Dekker17 Dec 2020, 21:14
Re: Polar distance of PolarisHerman Dekker8 Dec 2020, 02:41
Re: 1st type Hand held Bagnold Sun CompassHerman Dekker29 Nov 2020, 02:21
Re: Hanno Ix azimuth diagram flowchart?Herman Dekker30 Oct 2020, 09:33
Re: Crelle's tablesHerman Dekker17 Oct 2020, 07:17
How long until Sun goes down?Herman Dekker13 Oct 2020, 18:10
Old navigation books collectionHerman Dekker5 Oct 2020, 20:43
Re: USNO web app clonedHerman Dekker16 Sep 2020, 06:09
Re: Problem with Frank Reed updated online almanacHerman Dekker11 Sep 2020, 06:27
Re: Problem with Frank Reed updated online almanacHerman Dekker10 Sep 2020, 21:00
USNO Nav. Star Chart how Old?Herman Dekker3 Jun 2020, 20:36
Re: Anti-spoof appHerman Dekker12 Apr 2020, 07:21
STARPILOT TI-89(Titanium) calculator program update.Herman Dekker9 Apr 2020, 17:50
Re: Meridian Passage Table, Daily PagesHerman Dekker7 Apr 2020, 08:30
Re: Nautical Almanac AppHerman Dekker5 Apr 2020, 21:39
Re: Nautical Almanac AppHerman Dekker5 Apr 2020, 07:21
Re: Celestial in the Age of Sail, April 7-9, onlineHerman Dekker1 Apr 2020, 09:11
Re: Sun-Venus distance observationHerman Dekker27 Mar 2020, 19:46
Re: Katherine Johnson/Browser trickHerman Dekker28 Feb 2020, 08:32
Re: Earliest Crescent Moon VisibilityHerman Dekker29 Jan 2020, 11:31
Earliest Crescent Moon VisibilityHerman Dekker27 Jan 2020, 14:27
Compass direction from MoonHerman Dekker16 Jan 2020, 18:39
Re: Pub. 249 as Starfinder and Sight-plannerHerman Dekker26 Dec 2019, 13:47
Re: Transferring 'Navigator' from a Windows 7 Laptop to a Windows 10 PCHerman Dekker12 Dec 2019, 21:50
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Herman Dekker21 Nov 2019, 09:15
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Herman Dekker19 Nov 2019, 03:39
Re: Bob Goethe's Mark 2 Navigators slide rule, test drive comparisons.Herman Dekker16 Nov 2019, 12:08
Re: Is the NavList website safe?Herman Dekker5 Nov 2019, 19:46
Is the NavList website safe?Herman Dekker5 Nov 2019, 08:15
Re: USNO website outagesHerman Dekker21 Oct 2019, 16:21
Re: USNO website outagesHerman Dekker21 Oct 2019, 15:58
Re: Relearning CelNav and Lunars for AntarcticaHerman Dekker13 Oct 2019, 04:38
Re: Experience of using a hand-held bubble sextant in a light aircraftHerman Dekker29 Sep 2019, 00:49
Re: The Improved Suns Table4 from HO249Herman Dekker3 Sep 2019, 19:52
Re: The Improved Suns Table4 from HO249Herman Dekker3 Sep 2019, 18:27
Re: The Improved Suns Table4 from HO249Herman Dekker31 Aug 2019, 12:52
Re: The Improved Suns Table4 from HO249Herman Dekker30 Aug 2019, 21:26
Re: The Improved Suns Table4 from HO249Herman Dekker29 Aug 2019, 21:12
Re: GMT of lunar altitudes when possible?Herman Dekker10 Jul 2019, 16:15
Re: GMT of lunar altitudes when possible?Herman Dekker8 Jul 2019, 20:07
GMT of lunar altitudes when possible?Herman Dekker7 Jul 2019, 14:58
Re: What makes man a Navigator?Herman Dekker2 Jul 2019, 09:31
Which stars are circumpolair at 52° N?Herman Dekker29 May 2019, 14:10
Re: Easy star-to-star distance correctionsHerman Dekker23 May 2019, 07:18
Re: Easy star-to-star distance correctionsHerman Dekker22 May 2019, 15:23
Re: Modern Celestial at Mystic Seaport, May 18-19Herman Dekker19 May 2019, 08:10
Re: Modern Celestial at Mystic Seaport, May 18-19Herman Dekker14 May 2019, 20:11
Re: Wikipedia article on Winslow Homer's "Eight Bells"Herman Dekker9 Apr 2019, 09:50
Re: GPS Anti Spoof app updateHerman Dekker5 Apr 2019, 05:44
Lunar with Davis MKIII Sextant?Herman Dekker20 Feb 2019, 17:06
Re: Latitude at Noon and Midnight.Herman Dekker15 Feb 2019, 16:51
Latitude at Noon and Midnight.Herman Dekker15 Feb 2019, 01:36
Re: ADMIN NavList on small screensHerman Dekker7 Feb 2019, 09:01
Declination magneticHerman Dekker12 Jan 2019, 10:23
SlideRule usesHerman Dekker12 Jan 2019, 10:04
The Improved Suns Table4 from HO249Herman Dekker7 Dec 2018, 07:31
Re: Yet another 4-place Nat-Haversine Table project?Herman Dekker5 Dec 2018, 03:23
Re: Degree CalculatorHerman Dekker2 Dec 2018, 10:05
Re: Quad regression for Lunar Distances?Herman Dekker20 Nov 2018, 12:26
Re: Where is this mountain citadel?Herman Dekker9 Oct 2018, 07:28
Re: T Hav Doniol Sumner LOP ExampleHerman Dekker10 Sep 2018, 06:23
Re: Who is Where on the Globe?Herman Dekker15 Aug 2018, 03:31
Who is Where on the Globe?Herman Dekker15 Aug 2018, 00:41
Radio time signals disappearHerman Dekker7 Aug 2018, 16:39
Re: "Horns" of the Moon are relatively horizontal?Herman Dekker31 Jul 2018, 02:07
"Horns" of the Moon are relatively horizontal?Herman Dekker30 Jul 2018, 08:16
Re: Flat Bygrave alternative configurationHerman Dekker25 Jun 2018, 23:58
Re: Flat Bygrave alternative configurationHerman Dekker25 Jun 2018, 17:14
Re: A paper sextant sight...Herman Dekker8 May 2018, 08:32
Re: Quick Estimate of Sun DeclinationHerman Dekker5 Apr 2018, 10:20
Re: Nomogram for Dip Short of HorizonHerman Dekker18 Mar 2018, 21:49
Re: The "golden rule of three" - what's that?Herman Dekker14 Feb 2018, 09:38
The "OTHER" Kamal.Herman Dekker25 Dec 2017, 16:10
Which eye to use with the kamal?Herman Dekker15 Dec 2017, 20:40
Re: Pub 229Herman Dekker10 Dec 2017, 07:42
Re: Hc formula difference why?Herman Dekker23 Nov 2017, 10:52
Hc formula difference why?Herman Dekker21 Nov 2017, 10:25
Re: LAN By BrisHerman Dekker13 Nov 2017, 12:12
Re: Bris Calibration ImageHerman Dekker6 Nov 2017, 20:20
Re: Where in the world am IHerman Dekker4 Nov 2017, 21:56
Re: Where in the world am IHerman Dekker26 Oct 2017, 08:23
Re: Practice CN on cruise shipHerman Dekker22 Oct 2017, 08:11
Re: Azimuth method for positionHerman Dekker20 Oct 2017, 14:07
Re: ASA Douglas Style PlotterHerman Dekker17 Oct 2017, 09:33
Re: ASA Douglas Style PlotterHerman Dekker17 Oct 2017, 00:37
Re: ASA Douglas Style PlotterHerman Dekker16 Oct 2017, 10:16
Re: Dark Glass Artificial HorizonHerman Dekker7 Oct 2017, 07:43
Re: Can I Navigate Without an Assumed Position?Herman Dekker24 Sep 2017, 13:51
US Navy switches AIS ONHerman Dekker21 Sep 2017, 21:21
Re: new star finderHerman Dekker21 Sep 2017, 03:57
Re: US Navy and celestial...Herman Dekker16 Sep 2017, 10:17
Re: LED Street LightsHerman Dekker27 Aug 2017, 08:20
Re: Would you recommend TI-83 Plus?Herman Dekker26 Aug 2017, 18:23
Re: Are we all doing our math correctly?Herman Dekker12 Jul 2017, 07:32
Re: Another giant MoonHerman Dekker10 Jul 2017, 18:32
Re: Example sights very near the North PoleHerman Dekker6 Jun 2017, 20:04
Re: Example sights very near the North PoleHerman Dekker6 Jun 2017, 16:35
Re: A meridian-passage latitude from JupiterHerman Dekker12 May 2017, 12:33
Re: Take two: Latitude and longitude around noonHerman Dekker5 Apr 2017, 16:40
Re: LopHerman Dekker1 Apr 2017, 13:46
Re: Latitude and longitude around noonHerman Dekker5 Mar 2017, 00:34
Re: Latitude and longitude around noonHerman Dekker4 Mar 2017, 11:23
Re: Latitude and longitude around noonHerman Dekker2 Mar 2017, 22:17
Re: The ultimate celestial navigation time pieceHerman Dekker23 Feb 2017, 19:20
Re: TI-36X Pro degrees minutes seconds conversionHerman Dekker4 Feb 2017, 16:46
STARS below ?? declination are never visible.Herman Dekker25 Jan 2017, 07:45
Re: When even a Davis Mark 3 is too muchHerman Dekker15 Jan 2017, 11:36
Re: Is Sextant a generic word?Herman Dekker10 Dec 2016, 07:37
Re: Hello and a question about polarizer sun filtersHerman Dekker8 Dec 2016, 08:42
Re: Hello and a question about polarizer sun filtersHerman Dekker7 Dec 2016, 15:00
Re: USNO Website Down?Herman Dekker23 Nov 2016, 22:48
Table 4 Suns GHA+Dec modifiedHerman Dekker7 Nov 2016, 21:01
Re: Strange goings with a Casio G Shock watchHerman Dekker5 Nov 2016, 17:11
Re: Strange goings with a Casio G Shock watchHerman Dekker5 Nov 2016, 07:49
Re: Poster incorporating the Navigator's log from the Enola Gay for saleHerman Dekker24 Oct 2016, 00:13
Re: A new way to record and time observationsHerman Dekker17 Sep 2016, 22:34
Re: A new way to record and time observationsHerman Dekker17 Sep 2016, 07:17
A-12 sextant smellHerman Dekker16 Sep 2016, 15:34
Re: Sky Map ScreensaverHerman Dekker11 Sep 2016, 05:38
Re: Puzzled by Douglas Protractor InstructionsHerman Dekker5 Sep 2016, 09:27
Re: LED conversion Astra IIIBHerman Dekker25 Aug 2016, 12:28
Re: LED conversion Astra IIIBHerman Dekker19 Aug 2016, 06:47
Re: Cellphone & Sextant tetheringHerman Dekker3 Jun 2016, 20:31
Re: Attempting to decipher a "time sight"Herman Dekker28 May 2016, 16:35
Re: TI-85 Navigation Code.Herman Dekker24 Apr 2016, 20:06
Re: Ebbco Sun Shade ModificationHerman Dekker15 Apr 2016, 05:26
Re: Ebbco Sun Shade ModificationHerman Dekker14 Apr 2016, 10:28
Which Baader Solarfilter for Ebbco sextantHerman Dekker27 Mar 2016, 08:48
Re: Best way to record time for solo sightsHerman Dekker21 Feb 2016, 12:45
Re: Modern CN Ditch KitHerman Dekker18 Feb 2016, 21:35
Re: Polaris LTAHerman Dekker9 Jan 2016, 11:49
Re: Polaris LTAHerman Dekker9 Jan 2016, 08:35
Re: Fluids for Bubble Sextants and SealingMethods--Paul D.Herman Dekker30 Dec 2015, 00:35
Re: Fluids for Bubble Sextants and Sealing MethodsHerman Dekker28 Dec 2015, 19:48
Re: Fluids for Bubble Sextants and Sealing MethodsHerman Dekker28 Dec 2015, 15:21
Re: Rude star finderHerman Dekker19 Dec 2015, 06:45
Re: Rude star finderHerman Dekker17 Dec 2015, 01:00
Re: Rude star finderHerman Dekker17 Dec 2015, 00:13
Re: Spotting scope technique, success wow!!...Herman Dekker14 Dec 2015, 21:59
Re: TI-89 calculator + Starpilot questionHerman Dekker23 Nov 2015, 05:52
TI-89 calculator + Starpilot questionHerman Dekker22 Nov 2015, 09:32
Re: Use of stopwatch taking sights, any other users?Herman Dekker13 Nov 2015, 21:23
Re: Use of stopwatch taking sights, any other users?Herman Dekker10 Nov 2015, 11:43
Re: Using Table 4 HO249 for Suns GHA and Dec.Herman Dekker26 Oct 2015, 18:06
Re: The "Perfect" CN wrist watchHerman Dekker24 Oct 2015, 01:47
The "Perfect" CN wrist watchHerman Dekker23 Oct 2015, 15:34
Azimuth Diagram Hanno IxHerman Dekker5 Sep 2015, 20:26
Re: DIY Tables?Herman Dekker29 Aug 2015, 22:13
Re: DIY Tables?Herman Dekker28 Aug 2015, 13:29
Re: Another "emergency navigation" sight reductionmethodHerman Dekker18 Jul 2015, 07:21
Re: Another "emergency navigation" sight reductionmethodHerman Dekker18 Jul 2015, 07:18
Re: Another "emergency navigation" sight reductionmethodHerman Dekker17 Jul 2015, 21:38
Re: Another "emergency navigation" sight reductionmethodHerman Dekker16 Jul 2015, 05:08
Re: Haversine- how to derive it?Herman Dekker13 Jul 2015, 08:39
Re: 2102-D star finder or other?Herman Dekker25 May 2015, 15:13
Re: Davis MK III Index ErrorHerman Dekker11 May 2015, 10:36
Re: Davis MK III Index ErrorHerman Dekker10 May 2015, 20:30
Davis MK III Index ErrorHerman Dekker10 May 2015, 13:56
Determing the bearing off a celestial object.Herman Dekker28 Mar 2015, 13:14
Re: Using Table 4 HO249 for Suns GHA and Dec.Herman Dekker14 Mar 2015, 19:13
Using Table 4 HO249 for Suns GHA and Dec.Herman Dekker12 Mar 2015, 18:49

Index includes 249 messages.

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