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Sun/Moon algorithms

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  • 05-03-2010 10:07pm
    #1
    hopelessOne
    Registered Users Posts: 90 ✭✭


    Could anyone point me in the direction of some algorithms for calculating the sunrise, sunset, moonrise and moonset times and directions for any given longitude and latitude? I'd also like to calculate nautical & civil twilight etc.

    I don't have much knowledge of astronomy (or, frankly, advanced maths) but I've got a wide range of experience with programming languages so I could probably convert existing code to my preferred language (Ruby). Also, whilst accuracy is quite important, I'm only using these times for information for photographers -- nothing life-critical!

    Many thanks for any help, pointers, references or books you could suggest!

    Jamie


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    #2
    Mr Digger
    Closed Accounts Posts: 100 ✭✭Mr Digger


    see if Stellarium (the program)can help you..


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    #3
    Agonist
    Closed Accounts Posts: 1,329 ✭✭✭Agonist


    Other people will know much more about this than me but http://www.heavens-above.com/ gives you all that information. Maybe you can work backwards from that to work out your own calculations?


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