NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Precision of lunars
From: Frank Reed
Date: 2007 Apr 25, 22:53 -0400
From: Frank Reed
Date: 2007 Apr 25, 22:53 -0400
Alex you wrote: > Meanwhile I post my recent results, so that together with the previous > recently posted we have a complete set of 1 month observations. > I stress that this is a COMPLETE set, including good and bad > observations. > If I wanted to choose a "typical one", by any criterion > (average, median, etc.) this typical one will have error less than > 0.2. > There are all Lunars with SNO-T and 6x scope. > April 20 Venus at 11d. Errors: 0.1, 0.1, -0.2, 0.15. > April 20 Saturn at 57d. Errors: -0.1, 0.1, 0.0 > April 21 Venus at 21d. Errors: -0.3, -0.2, 0.1, -0.2, -0.1 > April 21 Pollux at 19d. Errors: 0.0, 0.2, 0.2, -0.1, 0.2 > April 21 Spica at 110d. Errors: 0.5, 0.5, 0.5 > Same again, AFTER reduction of the previous 3: > April 21, Spica at 110d. Errors 0.2, 0.0. Oh yeah, those are excellent results! I apologize for misunderstanding. I read through that message so fast earlier that I missed the bottom line. I guess the only part I'm puzzled by now is why you agreed with Lord Kelvin that one could not expect better than 0.5 minute of arc accuracy? Did I misunderstand that, too? Were you agreeing with his assessment or not? -FER www.HistoricalAtlas.com/lunars --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
