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Re: Classification of the methods for clearing the Lunar Distances
From: George Huxtable
Date: 2003 Apr 7, 23:13 +0100
From: George Huxtable
Date: 2003 Apr 7, 23:13 +0100
Thanks to Jan Kalivoda for a masterly summary of the various lunar-distance correction methods, which I will print off and slip into my copy of Cotter. He must have a superb library available in Prague, or else has done much travelling to collect his information. He ends by saying- >Thank you for your corrections and supplements. There's only one comes to my mind. Under "Short", or "approximate" methods, he describes the lunar-distance triangle, and says- > ....But the sections mM and sS are very short (half degree at most, but >mostly shorter), which is essential for further procedures. As I see it, the arc mM represents the (parallax - refraction) correction for the Moon's altitude, and will normally be around one degree at low Moon altitudes, not "half degree at most". George Huxtable. ================================================================ contact George Huxtable by email at george@huxtable.u-net.com, by phone at 01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK. ================================================================
