In a message dated 12/13/00 3:10:16 PM Eastern Standard Time, [EMAIL PROTECTED] writes:
> Steve, > > From Jean Meeus's "Astronomical Algorithms," 1951, p. 89: > > tan H = sin A / (cos A * cos f + tan h * cos f) > > where H is hour angle, A is azimuth, f is latitude and h is altitude, > and H is obtained via the arctangent. But note that in Steve's problem the altitude (h) is not given. To calculate the Altitude, you will need to account for declination and in the end that will yeild 2 (and occasionally 1 or none) possible answers at a given azimuth. Bill G.
