NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Calibrating a sextant scale
From: Alexandre Eremenko
Date: 2007 Nov 21, 11:37 -0500
From: Alexandre Eremenko
Date: 2007 Nov 21, 11:37 -0500
Fred, > Fred Hebard wrote: > > The problem is getting a precise star-to-star > > distances. I don't believe anybody claims to > > have solved that > > problem. I am not sure that I understand which problem exactly you address here. COMPUTING the star-to-star distances for given moment at given position is not a problem at all. With all corrections. But MEASURING them with a sextant with sufficient precision to obtain your sextant calibration (arc correction) seems (to me at least) a hopeless problem. I spent several years, making hundreds of observations trying to do this. It just does not work. Alex. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---