NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Greg Rudzinski
Date: 2013 Nov 16, 16:09 -0800
There has been discussion recently on the impossibility of a single celestial observation fix. Searching back in the archives found the late George Huxtable very eloquently criticizing the concept of a single celestial observation fix.
https://NavList.net/m2.aspx/ExMeridian-Exercise-Huxtable-dec-2010-g15001
George suggested plotting ex-meridians using different assumed longitudes. The attached plot illustrates this with two ex-meridians using different assumed longitudes. Each ex-meridian latitude and assumed longitude can now be described as a point on a single Sumner line of position that exactly matches the azimuth/intercept line of position.
So I think it is safe to say the single observation ex-meridian/LOP fix myth is busted. Byron will now have to return all those cokes ;-)
Greg Rudzinski
----------------------------------------------------------------
NavList message boards and member settings: www.fer3.com/NavList
Members may optionally receive posts by email.
To cancel email delivery, send a message to NoMail[at]fer3.com
----------------------------------------------------------------