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    Moon Lower Limb Ex-Meridian Back Sight
    From: Greg Rudzinski
    Date: 2012 Jul 14, 15:16 -0700

    Here is an ex-meridian back sight taken through a light haze to a sharp horizon while on an island mooring. What cove am I moored at ? This observation was extremely difficult even while on a mooring. Finding the Moon required observing the Moon to a short horizon then setting the sextant to 180 - the sextant reading. Even then getting the Moon into the field of view had me twisting about with my back to the Moon.

    UT 13:40:50
    Hs 115* 11.9' Lower Limb (back sight)
    Height of Eye 8 ft.
    Index Corr. 0.0'
    (a) =3.9
    (a)(t^2)/60 = added XM correction

    Semi Diameter 15.0'
    HP 55.0'
    Declination 8* 52.0' N
    GHA 123* 39.6'
    LHA 5* 9.7'
    Time After Meridian Passage 20.6 minutes

    Greg Rudzinski

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