A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Frank Reed
Date: 2020 Sep 11, 13:13 -0700
Eric, you wrote:
"he also gives a rigorous formula"
Heh. Yeah, beware any formula that comes with the label rigorous on it when it comes to celestial navigation. That usually means pointless! If we model the Moon as a perfect sphere... etc, etc. But it's not a perfect sphere.