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    Algorithm for star ephemerides?
    From: Yves Arrouye
    Date: 2001 Apr 16, 2:54 PM

    Hi,
    
    I'm looking for an algorithm for star ephemerides. I just don't know enough
    about astronomy yet. So far I've gathered that one adds the star's SHA to
    GHA Aries to get the star's GHA, but how does one get the star's SHA?
    
    I am looking for algorithms whose precision will be good enough for
    navigation, of course.
    
    Thanks!
    YA
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