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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Review of the Longhand Haversine Sight Reduction method
From: Andrés Ruiz
Date: 2015 Jun 22, 16:45 +0200
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From: Andrés Ruiz
Date: 2015 Jun 22, 16:45 +0200
Yes Gary, our conclusions are the same.
Rust has a note saying: "Name Z like the quadrant in which body is found". Additional information is needed: the approximate Z measured. Same problem.
In practical cases the only ambiguity with Hanno Z diagram is in N/S name, because the meridian angle gives the name East or West to Z.
So is not a problem that:
sin(x) = -sin(-x) = sin(180º-x) = -sin(180º+x)
sin 89º = sin 91º
