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    Re: Lunar Occultation continued...
    From: Paul Hirose
    Date: 2015 Nov 04, 21:19 -0800

    On 2015-11-02 10:07, Bob Crawley wrote:
    >
    > As with Geoffrey I missed the Occultation, thick cloud in Suffolk. Anyway 
    out of interest I used the prediction from the nearby Orwell Observatory 
    [N52d 00.6m E001d 13.8m] and assume that as Astronomers they are spot on for 
    an Observed distance of 0.
    > Orwell Observatory
    > Stark tables
    > reednavigation site corrected
    > reednavigation site uncorrected
    > Immersion
    > Time 214949
    > 55’.4
    > 55.3
    > 55.4
    > Emmersion
    > Time 224824
    > 36’.5
    > 36’.2
    > 36’.6
    
    I don't know what the six angles mean, but I checked lunar distance at
    the given position and times with my Lunar3 program. Assuming the times
    are UT1, at immersion I have lunar distance -0.0002° to Aldebaran. At
    emersion it's +0.0003°.
    
    The calculation includes the standard +.5 and -.25 arc second
    corrections in ecliptic longitude and latitude to approximate the offset
    between the Moon's center of mass and center of figure. Delta T 68
    seconds. Moon position from JPL DE406 ephemeris. Aldebaran position from
    Hipparcos, the New Reduction (van Leeuwen, 2007).
    
    

       
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