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Frank

Thank you for the explanations and reference.

> The reason the numbers didn't work out here is simply that you can't solve
> spherical trig problems with plane trig equations. Over short distances (less
> than a few degrees), you can get good results (since a small section of a
> sphere is well-approximated by a plane) but not good enough for this sort of
> problem.

That was my suspicion as to why the separation numbers did not agree.
>
> By the way, I don't think you were around when I posted a little thing on
> star-star sights last year. It's in the list archives "star-star sights" for
> April 6, 2004. It was designed as a preamble for some later stuff on lunars
> (see "Easy Lunars" April 28, 2004).

I've checked out the postings and pasted them into word for further study.
It is, however, a use of the word "easy" I am not familiar with ;-)

Bill

   

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