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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Lat/Lon by "Noon Sun" & The Noon Fix PROVE IT
From: Thomas Kleemann
Date: 2009 Apr 16, 19:13 +0200
From: Thomas Kleemann
Date: 2009 Apr 16, 19:13 +0200
George Huxtable schrieb: > Can a skilled observer take timed > altitude readings as close as 1 minute intervals, though? Can he do so > without an assistant for noting times and recording results? If not, we > should be told, because it becomes a disadvantage in the procedure. > Yes, he can. When I took series of observations to test if the precision of my Davies Mk15 decreases under hot sunny conditions, I preset the Sextant to small changes in altitude and got observations spaced as close together as about 45 to 50 seconds. Although it is quicker to note this obs with the time only instead of time/altitude pairs, I understand it is the same with the timed obs at the decreasing slope (because one already noted the altitudes when they were increasing). Regards, Thomas. --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
