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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: DIY long-term almanac for calculators
From: Paul Hirose
Date: 2018 Jan 18, 11:37 -0800
From: Paul Hirose
Date: 2018 Jan 18, 11:37 -0800
On 2018-01-17 12:28, Bruce Cutting wrote: > Any chance getting you to share the code I hve a TI-89 - believe they are > code compatible (basic) If you really want to see how I coded the Umland formulas in the C# language I'll provide the source code. But wouldn't it be easier to work from the document attached to Tony's original message? That's what I used. My source code would probably be more awkward for a calculator since it converts angles from degrees to radians. The latter is what the computer trig functions require. I'm coding the low accuracy Sun ephemeris from "Astronomical Algorithms" by Meeus, and will report on its accuracy.
