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    Re: Lunar distance measurement in ideal conditions: attainable accuracy.
    From: Bill B
    Date: 2013 Jan 16, 21:13 -0500

    On 1/16/2013 8:21 PM, Frank Reed wrote:
    > ...Actually, it's not all that difficult if you know two tricks...
    A third trick comes to mind. When doing observations with a body and
    horizon, it may be easier to invert the sextant, sight along the tube to
    locate the target body,look through the scope and center the body, then
    bring the substantially larger horizon up to the body. Once in rough
    alignment, flip the sextant.
    For point sources and the moon, perhaps bringing the moon to the point
    source then flipping the sextant to the most comfortable position (if
    necessary) might make sense (At least on paper ;-)
    Bill B.

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