NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Almanac For Computers
From: Jacky Wong
Date: 1996 Aug 22, 17:15 EDT
From: Jacky Wong
Date: 1996 Aug 22, 17:15 EDT
Hi Gordon,
There is a book called "the Calculator Afloat - a mariner's guid to
electronic calculator". This book provide you with formulae and data for
calculating GHA, SHA and Declination for Sun, Aris and Stars from 1979
to 1999.
I had use this formulae in 1984 to write celestial navigation programs
for private use on board ship. They are very accurate and within an
acceptable range when compare with the Alamnac.
My homepage that setted up in June this year basically use these
formulae and JavaScript to convert my old programs and make them
available on the WWW. You may have a visit and check the results. I have
not yet get time to code the part for stars which I worry will take
another month before it could be completed.
The address is http://www.speednet.net/~himarj
Jacky Wong
himarj@XXX.XXX
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