NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Moving Navigator LAN: Culmination to Meridian Passage fully solved
From: Antoine Couëtte
Date: 2024 Jan 9, 11:58 -0800
From: Antoine Couëtte
Date: 2024 Jan 9, 11:58 -0800
Thanks Andrés for this article.
So ... our so called "Wilson Formula" was published even much earlier than I thought, i.e. in the second part of the 19th Century instead of around 1935 or so.
As also earlier noticed in NavList, with its initialy published and tabulated "15.27" coefficient (matching "48/Pi") it is usable only for actual dLHA/dUT = 15°/h or very close to such value.
M. Don Sadler of the UK Nautical Almanach also earlier made a good point about recommending the use of a 2nd power of Time approximation to "Ho Culm - Ho Mer.Pass." instead of assuming that both Ho's are identical as a 1st power of Time approximation would imply.
Best Regards,
Kermit
