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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Revised Nautical Almanac Concise Sight Reduction Tables
From: Robert Bernecky
Date: 2015 Feb 16, 04:15 -0800
From: Robert Bernecky
Date: 2015 Feb 16, 04:15 -0800
Hi Kermit,
***Generally speaking, one should be [very] careful when attempting to recover an Azimuth value through only its SINE value, simply because sin (90°+&°) equals sin (90°-&°). ***
Yes, you are correct. But apparently in a divided triangle, the Z1 and Z2 angles are each less than or equal to 90 degrees. (I make this claim after looking at the table in the NA!).
