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    Re: LAN sight help !!
    From: Millard Kirk
    Date: 1999 Aug 15, 1:57 PM

    I would like to thank    Pierre  for his insight on GHA......  It gave me a
    new perspective on GHA.....
    
    
    
    Still...............
    
    Learning the Hard Way!!
    
    Millard Kirk KB8YQO       | mailto:mkirk{at}marshall.edu
    116 Lewis Ave                    | http://webpages.marshall.edu/~mkirk/
    Barboursville, WV               | A West Virginia Blue Water Sailor
    25504                                 | Phone: (304) 736-6544
                                               | First United Methodist Church,
    Barboursville, WV
                                               | Homepage
    http://www.gbgm-umc.org/bfumcwv/
    
    Hi Barry,
    
    >      mer pass + DR-LON(W) = GMT of LAN
    >
    >       12h 06m + 8h 09m 12s = 20h 15m 12s
    >
    >
    >  How does 20h 15m 12s help me in predicting LAN at my long....Is it
    >that simple that I just don't see it..???
    
    To compute directly LMT and LAT try:
    
            ZT + DLo = LMT
    
    DLo is + if west of the ZM (zone central meridian)
    DLo is - if east of the ZM
    
            LMT � Eqn. of Time = LAT
    
    
    You could also use the GHA method in pr�dicting the ZT of the merridian
    passage.
    
    Start with your DR longitude
    In the daily pages of your almanach, find the closest (smaller) GHA and
    substract from your DR longitude and note the time of that GHA
    Search the color pages "Increments and Corrections" to find the remaining
    degres and minutes and extract their equivalent minutes and seconds.
    Add and apply your ZD
    
    Exemple for today august 14 1999
    Find the ZT of the mer. passage at DR 125d 36.0'W:
    
    DR Lo   125d 36.0'
    GHA     -118d 49.9'           20h 00 GMT (from the daily pages)
                       6d 46.1'                   27 minutes (found in the
    colored pages)
                                                 20h 27 GMT
                            - ZD(+8)        8
                              ZT              12h27
    
    Have fun!
    
    Pierre Boucher
    **************************************************************************
                   X
                 XX X                                 Pierre Boucher N
               XXX XX               formation en navigation de plaisance
             XXXX XXX                 Ste-Therese (Quebec) Canada
           XXXXX XXX
         XXXXXX XXX          la "VOILE"...  le reste n'est que du vent...
     XXXXXXXXXXXXXX       ''Sail, Sail !''... the rest is only wind
     XXXXXXXXXXXX
               XXXX                      EMAIL: pboucher{at}lavoile.com
               XXX                               "http://www.lavoile.com"
    **************************************************************************
    

       
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