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    Re: Lunars: how to use the prop.log tables?
    From: Tony Oz
    Date: 2016 Aug 30, 16:40 -0700

    Huge thanks, Ed!

    This almost got me going.

    Just one thing, you said:

    Using your post data ...

    D = 84° 35.2' - 82° 56.8'
    = 1° 38.4'

    Looking 1° 38.4' up in table ...
    pLogD = 2766

    and ...

    d is total change in LD distance from First time (12:00) to your unknown time of lunar sight
    d = 84° 35.2' - 83° 00.0'
    = 1 35.2'
    Looking 1 35.2' up in table ...
    pLogd = 2623

    In the prop.log table I use it is the other way around:

    • 1° 38'.4 corresponds to prop.log 2623
    • 1° 35'.2 corresponds to prop.log 2766

    I think that was a typo (of your's).

    And now I see why the resultin UTC ends in 09 seconds - I must furter interpolate between 02:54:06 and 02:54:12.

    Thank you very much!

    Warm regards,



    Where can I get the precomputed lunar distances (with prop.logs) for the 2016 and beyond? Mr Steven Wepster seems to abandon this project...

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