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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Bris sextant (fixed angle sextant sights)
From: Chris Smith
Date: 2026 Mar 3, 08:21 -0800
From: Chris Smith
Date: 2026 Mar 3, 08:21 -0800
Just to add to this, I can use a running fix and then the HSC method to get a fix but I have been looking at some emergency navigation techniques where if you only had a chronometer with known error and a bris sextant could you get a longitude by double sight on the sun with the Bris sextant and time offset from LAN and UTC LAN to get longitude. I have been having moderate success with this in a fixed location but am wondering about underway and how to deal with any changes in lat and long.
Chris
