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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Algorithm for star ephemerides?
From: Ed Falk
Date: 2001 Apr 16, 6:16 PM
From: Ed Falk
Date: 2001 Apr 16, 6:16 PM
> I am looking at producing ephemerides myself. W/o a book.
See if you can find a copy of the "PPM" (Positions and Proper Motion)
catalog. It contains the positions of 468,586 stars as of 2000 (julian
date 2451545.) and the first order approximation of their proper
motions.
The names of the stars are not included in the database, so you're
on your own after that.
-ed falk
