A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Homer Smith
Date: 2023 Sep 7, 12:28 -0700
Free calculator emulators are available for some calculators. I downloaded apps from the App Store for my iPhone. The apps were free and I always have my HP 35 and HP 42s (Free 42) with me. Documentation with the HP 42s includes a 600+ program for CN. It would be quite a chore to enter, I'm sure. It is for sun sights and it calculates GHA and Dec of the sun and also refraction and dip.
A friend of mine wrote a program for the HP 42s that uses inputs of GHA, DEC and altitude of 2 CB's taken at the same time or of 1 CB taken at different times. The program is for a stationary observer. It consists of 162 program steps. It gives the lat/lon of 2 places where the COP's intersect.