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    Re: Longitude by Sunset
    From: Alexandre Eremenko
    Date: 2012 May 6, 20:14 -0400

    That's interesting!
    Can you explain how the second part of the sentence imlies the
    first?
    I mean what does parallax have to do with visibility?
    Alex
    
    On Sun, 6 May 2012, h.a.c. van Asten wrote:
    
    >
    > Actual moonrise/set is never visible since the hor.parall. is larger than the refraction .
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