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

Found: all from date 2015 to date 2024 author is herman dekker

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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