Path: utzoo!utgpu!water!watmath!clyde!rutgers!husc6!bloom-beacon!think!ames!pasteur!ucbvax!decvax!decwrl!sun!pitstop!sundc!seismo!uunet!portal!cup.portal.com!Isaac_K_Rabinovitch
From: Isaac_K_Rabinovitch@cup.portal.com
Newsgroups: comp.sys.ibm.pc
Subject: When Does The Sun Come Up?
Message-ID: <3249@cup.portal.com>
Date: 15 Feb 88 18:58:21 GMT
Organization: The Portal System (TM)
Lines: 22
XPortal-User-Id: 1.1001.1472

Back in 1981 or thereabouts, Byte published the CBASIC source for
a program that will tell you when the sun rises and sets, given
the day of the year and some geographic data.  That's be useful
for me.  I don't need one of those complicated astronomy programs,
and would like to be able to just ask my system "when will the sun
rise tommorow".  Probably I should just buy the Farmer's Almanac
every year and put up with the longitudinal error, but that might
damage my status as a compulsively high-tech individual.  

Translating the program from CBASIC to some more common language
is technically simple enough, but is a big, boring, bug-producing
job, since the program is a long one.  I might actually do it
one of these days, but first I should find out if anybody else has
(or if someone who knows the math just sat down and wrote the
same program in C).  Hello?

Isaac Rabinovitch
isaac.rabinovitch@cup.portal.com
ucbvax!sun!cup.portal.com!isaac.rabinovitch
Disclaimer:  Just because I think you're wrong, doesn't
             mean I don't think you're a fun person!
:-)