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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: When even a Davis Mark 3 is too much
From: David Pike
Date: 2017 Jan 15, 01:30 -0800
From: David Pike
Date: 2017 Jan 15, 01:30 -0800
John you wrote: Now consider a liner scale , aka a tape measure.
My first thoughts were to make 'just for fun' an improved ‘latitude stick’ using a digital Vernier calliper and tangent tables, finding one's natural arm’s length in the first instance by comparing the measured height of a planet with its calculated height. However, I soon found it’s only repeatable at full arms length, so it would only work for the small heights you probably wouldn’t want to use for celestial in any case. I decided to wait until the weather warms up before testing the idea further. Living inland, the horizon would have to be an led at eye height on a gatepost. DaveP
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