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    Re: Position from altitude and azimuth.
    From: Bill Lionheart
    Date: 2020 May 11, 08:01 +0100
    Dave

    Could you give your solution in detail please just for completeness? I used the same (sine rule and Napier's analogies). I should have looked at that Wikipedia page too it would have saved me from a long "now where did I see a formula for that" search  in text books.  The other Wikipedia article here is not as clear https://en.wikipedia.org/wiki/Spherical_trigonometry#Napier's_analogies but does reference Todhunter's book.

    Bill

    On Mon, 11 May 2020 at 04:32, Dave Walden <NoReply_Walden@fer3.com> wrote:

       
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