NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Kent Nordström
Date: 2009 Feb 27, 22:14 +0100
It
was some time since I discussed accuracy in lunar measurement with Frank Reed
and George Huxtable. I think this matter is satisfactorily settled at least
from my perspective. However, some weeks ago I was approached by an old collegue
of mine raising a question related to lunar distance calculation, which I have
not considered so far. My fellow made a reference to the German Manual of
Navigation issued 1906 ( title: Lehrbuch in Navigation). On page 386 in this
manual it is stated that it is only possible (or feasible) to use the lunar
distance method if the distance is between 70 and 110 degrees. The formula used
is the Dunthorne formula. There is no explaination in the manual why it should
be like that. After solving quite many lunar cases I have not found any
limitation as indicated above. Is there anyone who have any answer or
explanantion or thought about this.
Kent
N
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