NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Calibrating a sextant scale
From: Ken Muldrew
Date: 2007 Nov 20, 16:04 -0700
From: Ken Muldrew
Date: 2007 Nov 20, 16:04 -0700
On 20 Nov 2007 at 17:57, Fred Hebard wrote: > On Nov 20, 2007, at 12:46 PM, Ken Muldrew wrote: > > A clever method for measuring micrometer eccentricity is described in a > > message from a couple of years ago here: > > > > http://fer3.com/arc/m2.aspx?i=026728&y=200512 > > > > Ken Muldrew. > > Yes, but that won't help with scale eccentricity or off-centering of the > pivot. Right. I should have added that it would be a good idea to check the micrometer before doing star-star sights to check the arc, as it might take some time before a micrometer error became obvious from the star distances. Ken Muldrew. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---