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    Re: About Lunars, part 4
    From: Chuck Griffiths
    Date: 2002 Mar 19, 09:23 -0500

    First, I have a set of observations from last night that I'm hoping you might
    have a look at George, and see if it looks like I'm still headed in the right
    direction. From approximately 27-42.0 N, 82-44.2 W I took a set of observation
    as follows:
    
    (All times GMT 19 March followed by altitudes Degree-Minutes)
    
    Venus 00:11:41 7-50.6
    Moon 00:12:48 44-52.6
    Venus 00:14:02 7-25
    Moon 00:14:02 45-25.6
    
    Lunar Distances
    00:14:59 37-43.4
    00:15:27 37-43.2
    00:16:01 37-43.0
    
    Venus 00:16:36 6-43
    Moon 00:17:31 43-51.6
    Venus 00:18:09 6-24
    Moon 00:19:09 43-30
    
    I roughly averaged the sights and used the following for my calculations:
    
    Venus 7-5.6
    Moon 44-12.5
    Distance between 37-43.2
    
    From which I calculated:
    
    B .69733
    P 38.43635
    R 6.65151
    d 37.97333
    D 38.72479
    
    SD 15.1995
    HP 55.1
    
    D1 (00:00:00) 38.58036
    D2 (01:00:00) 39.03829
    
    T 00:18:55 v. real time of observation of 00:15:29
    
    So, based on the fact that the Moon was rather high and, by my observations, was
    moving at an apparent speed of about 24 arc minutes an hour can I assume that
    some of my error is due to "parallactic retardation"? Or, did I make some more
    basic mistake?
    
    One other question from Part 4, how do Bruce's tables compare to the tables that
    used to be in Bowditch?
    
    Chuck
    
    
    
    
    
    
    
    
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