A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2015 May 15, 12:12 -0700
The most elegant time sight formula to try and modify to all haversines would be the formula used in Rust's 1918 Practical Tables for Navigators and Aviators.
hav t = (Cos (Lat. ~ Dec.) - Sin Ho) / 2 Cos Lat. Cos Dec.
~ same name (Lat. - Dec.) ~ contrary name (Lat. + Dec.)
If Lars is watching then maybe he can work up something that will look good.
From: Francis Upchurch
Date: 2015 May 15, 07:59 -0700