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    Re: Lat and Long by moon transit.
    From: Antoine Couëtte
    Date: 2011 Jan 28, 23:50 -0800

    RE :
    http://www.fer3.com/arc/m2.aspx?i=115506
    [NavList] Re: Lat and Long by moon transit.
    From: hhew36---com
    Date: 28 Jan 2011 20:27


    Dear Hewitt,


    You wrote : "Looking at Kermit's results, I'd say he used the 6-30-2009 date."

    I will reply as follow :
    YES ! I used the 6-30-2009 (UT) date, with LT-UT = +9 , which was subsequently confirmed as correct by Jeremy.

    And for the time of the Moon Transit (UT=09h51m39.7s), I am getting the following data for the Moon :

    GHA = 229�56'3 with RA hourly change = +0�.5064 and

    DEC = S-12�38'7 with DEC hourly change = -12'.86

    The actual Moon declination on 6-30-2009 was (much) further to the South than what Jeremy first indicated : QUOTE The declination is about 7 degrees south UNQUOTE, which tells us that Jeremy's clue would actually have been more appropriate for 6-29-2009 as you say, but it was nevertheless quite "valid" for 6-30-2009 in the sense that the Moon was - for both dates - South of the 6-30-2009 Observer's Position.

    Hewitt, since in your subsequent post (RE : http://www.fer3.com/arc/m2.aspx?i=115508) you indicated : QUOTE Thanks, Jeremy,, that clears it up nicely, -Hewitt UNQUOTE, which results are you getting for this Moon LAN ?

    I would guess that all of us - yourself, Peter, Andres, Kermit, and others - should derive (almost) the same end result (see my enclosed listing of entries and results), even with a plain parabolic fit to Jeremy's data which certainly should be fully appropriate here given both the "moderate" Culmination height ({at} 55�) and the "rather tight" time-span ({at} +/- 12 minutes of time) around Culmination Time in this specific example.


    Best Regards


    Kermit


    Antoine M. "Kermit" Cou�tte


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