A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Lars Bergman
Date: 2017 Jun 5, 12:36 -0700
Robin, I used the pole as assumed position and calculated the intersection of the LOPs by plane trigonometry. Using cartesian coordinates and finding the intersection of the circles of position I get a longitude of 67°47.8' using GHA and declination in degrees with four decimals. Using tenth of a minute of arc, as I did in my previous posting, I get the longitude 67°14'. Half a degree of longitude in difference is however no more than 150 metres, not much to worry about.