NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Sumner Line using Ex-meridians
From: Andrés Ruiz
Date: 2013 Nov 18, 14:48 +0100
From: Andrés Ruiz
Date: 2013 Nov 18, 14:48 +0100
The only way to obtain a fix with the observation of one celestial body is to measure its altitude and its azimuth: two unknowns, two equations. Graphically very easy to understand.
Today impossible at sea!. There is no accurate enough azimuth available.