Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Algorithm for star ephemerides?
    From: John Simmonds
    Date: 2001 Apr 17, 4:13 AM

    Get your hands on a copy of 'Astronomical Formulae for Calculators' by Jean
    Meeus. Excellent book and has it just about all
    At 21:10 16/04/2001 -0700, Yves Arrouye wrote:
    >Thanks Bill. I already had a calculation for GHA Aries, which is why I was
    >asking for the SHA of stars. How long is the Almanac's data valid for?
    >Even w/o it, it seems to me that at this point, if I could get my hands on
    >some FK5 catalog data, I would be in business after looking at the NOVAS
    >code. But all my searches on FK5 don't get me what I want :( Damn Internet
    >;-). So I keep looking...
    >Another dumb question: how do I get from the name of a star to its # in a
    >catalog like the one Ed Falk mentions?

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site