NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Latitude by law of cosines
From: Chris Caswell
Date: 2018 Jan 14, 14:08 -0800
From: Chris Caswell
Date: 2018 Jan 14, 14:08 -0800
In John Karl's book "Celestial Navigation in the GPS age, on page 238 the formulae for Latitude is given as follows:
Sin(coL+G)=sin H sin G / sin d
where: tan G = tan d / cos LHA
coL is the co-latitude
Would one calculate the sum of the coL and G, and then subtract G to get the coL?
Thank you
Chris in VT
