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Re: Possibly a dumb question,bear with me please
From: Bill B
Date: 2014 May 12, 02:01 -0400
From: Bill B
Date: 2014 May 12, 02:01 -0400
On 5/12/2014 12:11 AM, Alan S wrote: Alan We've been down this path before. Whatever frame of reference/model/fiction you choose to embrace, a 15d change in Sun GHA/LHA (corrected for v in the NA) does *not* equate to a 15d change in azimuth--except in rare special cases. More so for the moon. 4 hours do not equate to a 60d change in azimuth, nor LOP's at right angles to the "towards" or "away" azimuths. Bill B > The sun's movements, I know it's the earth that moves about the > sun,however the fiction is that the sun moves 15 Degrees/hour, so the > angle between LOP's shot 4 hours apart would be 60 D. > > My understanding of the moon's movements, possibly incorrect, are that > it moves more quickly, and in an irregular manner compared to the sun. > Given that situation, would AH moon shots taken about 4 hours apart, > give LOP's 60D apart, a reasonable cut, providing an acceptable fix, as > would be the case with shots of the sun, 4 hours apart. I hope this > restatement is clear enough. >
