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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Finding stars in daylight
From: Fred Hebard
Date: 2019 Jul 14, 00:14 -0400
From: Fred Hebard
Date: 2019 Jul 14, 00:14 -0400
I don’t yet know whether my formula was correct, but the tilt of the telescope problem is similar to a great circle route problem. At 90 degrees rotation from the direction of tilt, the path of sight of the telescope follows a great circle, intersecting the equator at the azimuth read off the azimuth plate and at 90 degrees altitude, tilt degrees from the pole, in the direction of dip of the tilt, where dip is defined in geology and surveying. Now to derive a formula.
On Jul 13, 2019, at 23:01, Gary LaPook <NoReply_LaPook@fer3.com> wrote:I was just talking about the altitude, not the azimuth. But the same thing goes for that too if your azimuth measuring device (we use panoramic telescopes) which have the same kind of mounting, azis parallel with the bore of the gun, cross levelling bubbles to ensure that the plane that you are measuring azimuth in is horizontal.
gl
