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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Refraction
From: Marcel Tschudin
Date: 2005 Aug 17, 00:07 +0300
From: Marcel Tschudin
Date: 2005 Aug 17, 00:07 +0300
Frank wrote > Just for reference for everyone else, this code is available on S&T's web > site: > http://skyandtelescope.com/resources/software/ > as refr1.bas on page 3 of "Basic Programs". This is very old-fashioned > code > --line-oriented BASIC with variable names limited to two characters-- but > it's not too painful to convert to your favorite flavor of a modern > language, > and the general approach appears to be reasonable. Bear in mind that > certain > choices for things like step size in integration were chosen with 1989's > least > expensive second-hand personal computers in mind (think Apple IIe). Does anyone of you know where to obtain a newer program in source code and with a description of what it does? Marcel