A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David Pike
Date: 2016 Aug 28, 02:08 -0700
Frank: As a largely ‘Armchair Navigator’ these days, I could see a use for this in cloudy conditions which gave only occasional glimpses of the Sun if you had a timepiece which was only good enough to time short intervals. I agree though, it’s a bit ‘professorsorial’.
Robin: Please see my ‘homework’ attached. I think I see the maths now. My next ‘scratchings’ will be to see if I can use spherical triangle diagrams to show it has to work. DaveP