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George Huxtable wrote:
> I've just been delving into "Lunar Distance (Navigation)" in Wikipedia, and
> can quote this little gem-
> "[edit] Theory
> If there are two people, one at Greenwich and one 15 degrees West, the time
> by the sun will be one hour later at 15 degrees West. So, if the person
> observes the position of the moon at Greenwich at noon and another person
> observes the moon 15 degrees west of Greenwich at their locally determined
> noon, then due to the one hour difference, although the sun is at its
> zenith, the moon would have moved approximately its own diameter across the
> sky."

My guess is that the author has the right idea but is not expressing it
clearly. I believe the intent is to say that if an observer at Greenwich
and another at 15 degrees west make observations at the same time "by
the sun", the western one will actually occur a hour later.

To be fair, this is only a "stub", not a full-fledged article.

http://en.wikipedia.org/wiki/Lunar_distance_%28navigation%29

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