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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The Observer’s Book on Astro-N avigation - Coutinho sextant
From: David Pike
Date: 2016 Apr 30, 14:37 -0700
From: David Pike
Date: 2016 Apr 30, 14:37 -0700
Bill
It would be very useful if in addition to your other excellent photos you could get a photograph of the view of the bubbles down the eyepiece to supplement the diagrams on page 163 of 'Taking the Stars'. Also 1, does the Coutinho require fiduciary marks for the longitudinal bubble, or is the radius of the level cunningly matched to something? Also 2, how does the Coutinho allow for the fact that the body is focused at infinity, and the levels are about nine inches in front of the observer’s face? DaveP
