The equations for a direct solution to the spherical triangle (sight
reduction) is in the big thick Bowditch book.
I programmed my HP11 calculator to do it years ago and was very pleased with
the results.

Dave Erickson


"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.
--
Courtney Thomas
s/v Mutiny
lying Oriental, NC