NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: 1768 Almanac
From: Ken Muldrew
Date: 2007 Apr 19, 09:01 -0600
From: Ken Muldrew
Date: 2007 Apr 19, 09:01 -0600
On 18 Apr 2007 at 18:09, Frank Reed wrote: > Just a reminder, the lunar distance predictions on my web site ALREADY > provide the lunar distance tables in Greenwich Apparent Time (or Greenwich > Mean Time if prefered) for any date. You can set it to produce tables with > distances in degrees, minutes, and tenths or in degrees, minutes, and > seconds. The latter allows direct and immediate comparison with the > published tables. This online tool has been available for exactly this > purpose for some three years now. Enjoy! In fact, here is an example from 3 years ago where the errors in the 1800 almanac were tabulated using Frank's online almanac: http://www.fer3.com/arc/m2.aspx?y=200412&i=020982 You can see that the errors were substantial. Hopefully Alex will soon be providing us with more examples. Ken Muldrew. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---