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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Buying a sextant- a cautionary tale.
From: George Huxtable
Date: 2006 May 1, 01:07 +0100
From: George Huxtable
Date: 2006 May 1, 01:07 +0100
Alex wrote- | George, | In a previous message I suggested some alternative | to displacing the index method. | How large is the area on the arc that you cannot read? From 5 deg on the arc to 5 deg off the arc, the fine divisions were completely gone. Between 5 and 10 on the arc, they could be read against the Vernier with great difficulty. Do take account of the fact that a sextant may be used to measure lunar distances in the night, and small angles such as height of a lighthouse, for distance-off, in the daylight. George. =============== contact George Huxtable at george@huxtable.u-net.com or at +44 1865 820222 (from UK, 01865 820222) or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.