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    Re: Sunrise
    From: Stacy Hanna
    Date: 2004 Jul 18, 20:06 -0400

    The times that you used for sunrise were actually the times for Civil
    Twilight, Using the correct times the answer would be:
    
    lat: 24-20 S long: 47 W
    
    Nautical Almanac 2003
    
    20                6.34
    
    24,20            X
    
    30                6.53
    -------         --------
    10*              19 m          Dla = 24.20 - 20 = 4* 20'
    
    Table 1 page xxxii
    10-4.20-4.30-19-20 ---  corr. = 9 m      X= 6.34 + 9  =6h 43m
    
    long:                   47*
    47*/15* = (ZD)3 x 15* = 45*
                         ---------
                   Dlo      2*
    conv. arc to time page i
    2---                   8 m   (w=+)
                     06 h 43 m
                   ----------------
    SUNRISE           6 h 51 m
    
    -----Original Message-----
    From: Navigation Mailing List
    [mailto:NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM] On Behalf Of Guus Dekker
    Sent: Sunday, July 18, 2004 14:38
    To: NAVIGATION-L{at}LISTSERV.WEBKAHUNA.COM
    Subject: Sunrise
    
    What is wrong with my computation about sunrise at Sao Paolo at july 18
    2003(three)
    lat: 24-20 S long: 47 W
    
    Nautical Almanac 2003
    
    20                6.11
    
    24,20            X
    
    30                6.27
    -------         --------
    10*              17 m          Dla = 24.20 - 20 = 4* 20'
    
    Table 1 page xxxii
    10-4.20-4.30-17-15 ---  corr. = 7 m             X= 6.11 + 7  =
    6h 18m
    
    
    
    
    long:                            =  47*
    47*/15* = (ZD)3 x 15* = 45*
                                       ---------
    
                                Dlo      2*       conv. arc to time page i
    2---                  8 m   (w=+)
    
                                ----------------
    
    SUNRISE
    6h 26m
    
    (my navigator light 4.1. prog tells me the sunrise = at 6h 50m)
    ??????
    
    
    Guus Dekker The Netherlands (Stedum : 53-19,24N  006-41,31E)
    
    
    

       
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