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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Latitude by law of cosines
From: Fred Hebard
Date: 2018 Jan 17, 00:02 -0500
From: Fred Hebard
Date: 2018 Jan 17, 00:02 -0500
Chris,
You could use lunars to determine your longitude or to determine GMT. Pub 229 or the NA render the calculator and slide rule superfluous, although it would require some ingenuity to do lunars with 229.
Fred
Fred Hebard
On Jan 16, 2018, at 6:03 PM, Chris Caswell <NoReply_Caswell@fer3.com> wrote:Frank,
Thank you for your reply. I was exploring it for a thought experiment of being "dropped" somewhere in the world could I find out where I was and what I would need. It seems I would need a sextant, watch set to correct GMT, Pub 229, Nautical Almanac, and a scientific calculator or slide rule, if I wished to not use any electronics. I realize the slide rule, with only 3 decimal places, would be less accurate.
Chris in VT
