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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Compare Methods: Lat/Lon Near Noon
From: Tony Oz
Date: 2021 Sep 3, 01:33 -0700
From: Tony Oz
Date: 2021 Sep 3, 01:33 -0700
Hello!
When selecting the value for the LAN altitude I (voluntarily) decided to use a half-sum the the two available samples - basing that decision on the fact that the second sample was after the LAN when was still rising (because of the MoO+MoB).
I wonder how good was that decision.
Also I notice that the Δt formula from the Wilson's article results in slightly different value for the LAN, off by ~6 seconds from the purely-graphical solution.
Frank, could you please tell us the "true" values from your model of the situation?
Warm regards,
Tony
60°N 30°E
