A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Jim Rives
Date: 2020 Jan 7, 06:02 -0800
I have read that in arriving at the Moom’s semidameter you multiply the horizontal parallax, HP, by a factor of .2724. How does this get you the SD?
Be kind... I was an accountant so my math sort of peters out around pre-calculus.