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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Correct way to calculate time of LAN?
From: David C
Date: 2017 Feb 6, 20:32 -0800
From: David C
Date: 2017 Feb 6, 20:32 -0800
thenauticalalmanac method
GHA less than longitude is 173° 04' at 0630
long - GHA = 2° 1.2'
I have solved the problem. The example given by thenauticalalmanac was for west long. I am in east long so the equation becomes long + GHA. Similarly the sign in "My Method" needs to be chosen depending on whether long is east or west.