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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Graphically solving haversine calculation
From: Örjan Sandström
Date: 2015 Nov 13, 11:52 -0800
From: Örjan Sandström
Date: 2015 Nov 13, 11:52 -0800
Uhm, the text has a minor quirk.
"Bearing (azimuth) at sunrise and sunset
From the last figure it can easily be seen that:
At spring and fall equinox at sunrise/sunset (Hc = 0) the center of the inner semi-circle and the center
of the outer semi-circle coincide. So, wherever you are on Earth, the azimuth at sunrise/sunset will
be due East/West."
what would Happen at or near the poles?
Things would be interesting there around equinox would they not?
