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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sun and Moon in the Arctic
From: Lars Bergman
Date: 2026 Feb 26, 09:15 -0800
From: Lars Bergman
Date: 2026 Feb 26, 09:15 -0800
Tom,
My result is latitude N 82°38', longitude W 87°57'.
I started with the latitude. Assuming "standard" temperature and pressure, I got a true altitude of sun's center of 16°4.4'. Add 90° and subtract declination.
For longitude I got the true altitude of the moon's center 11°22.6' and then solved it as a time sight, getting a LHA of +/- 122°26.8'. Then longitude=LHA-GHA, west longitude negative. With the plus sign of LHA you arrive around E 157°, which is north of Siberia. Using the minus sign (or LHA=237°33.2') you get a longitude that seems to correspond better to your story.
Lars
