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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Differential lunars
From: Peter Monta
Date: 2013 Jul 31, 03:50 -0700
From: Peter Monta
Date: 2013 Jul 31, 03:50 -0700
Hi Stan, > Is this the method discussed in the Navigator's Newsletter Issue 4? I don't think so---the author seems to be talking about altitude observations of the moon (together with star LOPs) to estimate the clock error, a la Chichester. I've been fooling around in Stellarium using its angle-measurement tool, and it seems to be fairly easy to find bright star pairs that are close to a star-Moon distance at any given time. Could even do this all experimentally, without elaborate precomputation---just go outside, sight the desired star-Moon pair, then keep that sextant setting and search for star-star pairs nearly equal in angle by sweeping the sextant. Cheers, Peter
