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    Re: Jupiter and the Moon
    From: Alexandre Eremenko
    Date: 2013 Jan 20, 19:30 -0800

    Frank,
    your message touches several interesting questions.

    > The angular distance from Jupiter to the near limb of the Moon will be less than > a degree for most observers in the Americas. The exact value depends on your
    > location.

    Near limb will be the dark one.
    It never crossed my mind to observe a lunar distance from a DARK limb.
    I don't think it is possible in the usual conditions when the dark part is
    not visible.

    > It's still an excellent test of your sextant and your skill in using it.

    Why is this a more "exellent test" than any other Lunar?
    (I understand this could be a test for my conjecture about something wrong
    happening with my sextant first two teeth. But in general, what is so
    excellent about this particular configuration?)

    > In fact, by observing this distance, you can determine your latitude

    Do you mean by the horizontal parallax?
    How else can the latitude affect a lunar
    distance?

    > and there are other problems connected with small angle lunars

    What are they? I understand that the distance changes very slowly because
    they have different declination. But what else is bad about close lunars?
    Suppose the declination happens to be the same.

    Alex.
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