NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: John Karl
Date: 2010 Aug 30, 19:24 -0700
Frank, I’m having trouble following this thread without going back over many posts. You recently wrote:
< "This analysis raises another entertaining issue regarding the input data for clearing a lunar. We discussed the case of a lunar where the altitudes are each 45 degrees on opposite sides of the zenith and the measured distance is exactly 90 degrees. The difference in azimuth is 180 degrees, and the cleared distance is 89d 21.3'. If I shift the Moon's altitude to 40, the difference in azimuth is smaller: 147 degrees ..… >
I get lost in this last sentence. Neither shifting the moon’s altitude down to 40d nor clearing the lunar distance changes the azimuth difference (what I call the relative bearing angle, RBA). What am I missing. Or do I completely misunderstand the topic here?? Also, what are these 45d sun and moon altitudes -- apparent altitudes, semi-diameter corrected, or what??
JK
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