NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Lunars: C.Plath vs SNO
From: Alexandre Eremenko
Date: 2007 Aug 23, 19:51 -0400
From: Alexandre Eremenko
Date: 2007 Aug 23, 19:51 -0400
Here are some Lunars I took yesterday before making my final decision to cell my C. Plath:-) (A brass vernier sextant 7 1/2 inch with 3 scopes, late XIX century. Is anyone interested? The reason I am selling is that I already have 5 sextants and want to try another one. They just take too much space:-) Aug 23 (Greenwich date), Jupiter at approx 13 degrees. T=80F, P=740mm, fair weather, hot and humid, moscitos:-) C. Plath, 13x scope IC=-30", Lat=40d27'2, Long=86d55'8 GMT, Sextant reading, Error: 2:49:35, 14d7'10", 0'1 2:53:35, 14d8'50", 0'5 2:56:10, 14d9'20", 0'2 2:58:00, 14d10'00", 0'4 3:00:35, 14d10'20", -0'1 Average error: 0'22, sigma 0'23 SNO-T 7x scope: IC=-0'4: 3:11:45, 14d13'2, -0.4 3:13:35, 14d14'1, -0.1 3:15:15, 14d14'8, 0.1 3:16:05, 14d14'8, -0.1 3:17:15, 14d15'1, -0.2 Average error -0'14, sigma=0'18. Alex. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
