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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Planetarium Software
From: Ken Muldrew
Date: 2005 Apr 11, 10:23 -0600
From: Ken Muldrew
Date: 2005 Apr 11, 10:23 -0600
On 11 Apr 2005 at 10:53, Alexandre Eremenko wrote: > How do you produce the almanac entry? > Did you download the almanac/ephemerides data (from a US gov website?) or > you compute them? Alex. You can download the data files from the JPL solar system integration at: http://ssd.jpl.nasa.gov/horizons.html or you can get a much more compressed version (with claimed accuracy to better than an arcsecond) that also comes with programming hooks from a group of astrologers at: http://www.astro.com/swisseph/ The latter is very easy to incorporate into your own almanac software. Ken Muldrew.
