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    Re: venus
    From: Fred Hebard
    Date: 2004 Oct 10, 17:39 -0400

    I also showed a divergence of about 0.4' of arc in cleared lunar
    distances with the predictions from Frank Reed's web site for a
    different set of observations than Michael Dorl's Venus lunar.  Part of
    that difference may be Frank correcting for the oblateness of the
    earth, but that should only amount to 0.1' of arc according to Frank's
    site.  I cleared my lunar distance using Young's method with altitudes
    computed from the known time of the lunar observation, as laid out by
    George Huxtable in his lunar series.
    
    I still found Frank's site invaluable as I am having a problem with my
    computation of the calculated lunar distance, the one people used to
    obtain from the almanac.  The spreadsheet software I use for these
    calculations has been updated and I fear some of my formulas have been
    corrupted during the update.  I'm still tracking down this error.
    
    I noted also that Frank's computed altitudes for the objects differed
    from those given by the Naval Observatory site.
    
    Fred
    
    
    

       
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