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    Re: What is the Longest Lunar Possible?
    From: Geoffrey Kolbe
    Date: 2013 Jan 21, 20:48 +0000

    Brad, you wrote:
    "Is there a place on earth where we could observe a lunar distance of ~180 degrees? Perhaps in the polar regions, where the sun never sets but skims the horizon and the full moon simultaneously visible to the observer?"

    The problem with angles ~180 degrees is that the measured angle would become extremely sensitive to parallax errors in the measuring instrument.

    Geoffrey
       
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