NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Calibrating a sextant scale
From: Mike L
Date: 2007 Nov 20, 08:01 -0800
From: Mike L
Date: 2007 Nov 20, 08:01 -0800
> Then calibrate for index error as you already know. If any large errors > are found and corrected for you should repeat the last two steps. > > Nicol�s > > cal_index_mirror.jpg > 49KViewDownload Nicol�s, thanks - I should have said that I had done the basic calibration as you suggested. The real question I was asking is having done the zero calibration, how would I check the error at other readings? ... the answer must be to take readings between two known stars (not risking life an limb off a cliff!) which I presume will be very accurate - but perhaps its not that simple because each will have some refraction through the atmosphere. Has anyone tried this? Mike --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to NavList@fer3.com To , send email to NavList-@fer3.com -~----------~----~----~----~------~----~------~--~---
