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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Polynomial project
From: Gordon Talge
Date: 1997 Feb 21, 21:35 EST
From: Gordon Talge
Date: 1997 Feb 21, 21:35 EST
As some of you know, I am working on a project to duplicate some of the
navigation stuff in the now out of print, "Almanac for Computers".
I have slightly revised my polynomials for the Sun for 1997. I changed
the way the S.D. was calculated ( supposed to make it more accurate, I may
change it back to the old way though) and used a better way of rounding off
numbers. I also changed compilers and languages. This was done with the
djgpp port of the GNU Fortran 77. The other was done with Turbo Pascal.
In my opinion the old polynomials are still vaild within tolerance, so they
don't really need to be replaced.
I have calculated for 1997 polynomials for:
Aries: GHA
Sun: GHA
Dec.
S.D.
Moon: GHA
Dec.
H.P.
S.D.
Planets: GHA
Dec.
Venus, Mars, Jupiter, Saturn.
I also have done the Sun for 1998, 1999 and 2000. And 1942 for historical
reasons. ( The library has a 1942 Nautical Almanac ).
If you are interested, just e-mail me and I will be happy to send them
to you to play around with, along with an explaination of their use.
-- Gordon Talge
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(. .)
+-----------------------ooO-(_)-Ooo----------------------+
| Gordon Talge WB6YKK e-mail: gtalge@XXX.XXX |
| Department of Mathematics QTH: Loma Linda, CA |
| Mt. San Jacinto College Lat. N 34? 03.1' |
| San Jacinto, CA Long. W 117? 15.2' |
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