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> Bill has offered some code to do the job, but perhaps Mike wishes to
> understand the problem and how to solve it, rather than paste in another's
> code.
>
> My first word of advice, to Mike and to many other listmembers, is to
> acquire a copy of "Astronomical Algorithms", by Jean Meeus.

George

Thanks for the thorough coverage, and the correct spelling of Meeus.  My
spreadsheet did not attempt to deal with Sun or moon angular separation from
bodies.  I tended to use the moon and Franks lunars to determine sun/moon,
moon/star distances.  Not yet good enough to do Sun/star shots ;-)

Therefore, your latest posting was of great interest to me, and starts to
give me a handle on dealing with the Sun and moon separation angles.  Thanks
again.

I did send along some of the background used in constructing the spreadsheet
to Mike et al, which included Meeus formulas, as well as text captures of
postings by you and Frank some time back on the subject including formulas.
As you have pointed out, there are several ways to skin that cat, and my
spreadsheet addresses only one of them.

Bill

   

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