A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Herman Dekker
Date: 2015 May 10, 13:30 -0700
Thanks for the info.
There is no free sight around possible in the backyard. It is dark now, so I used Venus, that works. The index error is now back from 55' to zero, as long as it stays with a plastic sextant. Is a high cloud with a sharp edge usable for index error? This is just an idea, as nothing else is possible?
Frank can you explain: What is the Sun test on the Moon?