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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: SNOT at large angles
From: Fred Hebard
Date: 2004 Nov 1, 11:31 -0500
From: Fred Hebard
Date: 2004 Nov 1, 11:31 -0500
Alex, WarrenKnight instruments in Philadelphia, PA, is the only location in the U.S. of which I am aware that _might_ check the arc error in your sextant. There's a sextant shop in the Pacific NW that will check the collimation. You also can do that yourself following instructions in Bowditch. However, you might want to run a few more lunars at large distances before concluding that your arc is in error. Fred On Nov 1, 2004, at 9:51 AM, Alexandre Eremenko wrote: > Dear Frank, > Are there any sextant experts in Chicago, > to whom I could show my sextant to collimate > and determine the arc non-uniformity error? > I just don't want to send it by mail again, > but Chicago is the place I can easily come to. > Alex.
