The only one I know is

Astronomy with your Personal Computer, Peter Duffett-Smith, Cambridge
University Press, 2nd ed, 1990.

It's written in old fashioned Basic, hence hard to follow, use, and
debug.

I spent some time on our circumnav porting it to Visual Basic, which
ran and produced results similar to those in the almanacs. I could
probably find that code if anyone's interested. I haven't looked at it
in five years, so it's as is, where is. While it's good, tight, well
subdivided code, there are no comments, so you'd need a copy of the
book to follow it, or take it on faith....

Jim Woodward
www.mvfintry.com


Courtney Thomas wrote in message ...
Is there a publication revealing the algorithms so that a programmer can
avoid having to buy almanacs,etc. and instead generate his own tables
and annual almanac ?

Thank you.