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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Exercise #5 Lat/Long near Noon.
From: Jeremy C
Date: 2008 Jun 2, 01:13 -0700
From: Jeremy C
Date: 2008 Jun 2, 01:13 -0700
> Of course, the centre point of the resulting curve isn't very different. > Ignoring that obviously-duff observation, I would put it at about 15.5 > minutes, with an error of about 0.1 minute of time, which would be 1.5 > minutes of longitude. Does anyone else claim he can do better? I take > Jeremy's claim, that he can do it to 2 seconds, with a grain of salt... > > George Thanks for the better plot George. My Excel skills have waned quite a bit since I last tried to graph things. I printed out your graph on my printer and folded it (the darker background made it a bit tougher) and drew a line through the center of the crease. I find my crease distinctly more towards sight 16 (touching the corner of the diamond.) I interpolated it at 0.7 and got 12h 15m 34s as LAN. As they say here, "Your mileage may vary," and I am not about to quibble about so little time. Jeremy --~--~---------~--~----~------------~-------~--~----~ Navigation List archive: www.fer3.com/arc To post, email NavList@fer3.com To , email NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
