A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Chris Caswell
Date: 2017 Dec 9, 14:17 -0800
I have some bubble sextants that you can align the sun tanget to the bubble, per the original manuals. Some of sextants have bubble centers that are not clear enough and diffuse the image (I don't know why, unless it is age) so it is much easier to use that method.
Chris in VT