A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2015 May 19, 10:27 -0700
How about Modern Haversine Sight Reduction (MHSR) ?
The original formula can be refered to as Classic Doniol Sight Reduction (CDSR).
Classic Doniol is a very good sight reduction method but requires a pair of tables and a rule for when the latitude declination sum is greater than 90°. It is the classic Doniol method that I have posted in my sailing blog. The MHSR uses only a single compact table with no special rules which makes it a better sight reduction method.
From: David Fleming
Date: 2015 May 18, 15:38 -0700