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    Re: Exercise: Lower Transit
    From: Antoine Cou�tte
    Date: 2009 Sep 20, 11:08 -0700

    Sun 20 Sep 2009
    
    
    Dear Jeremy,
    
    
    Given the information that Kochab is at lower culmination, we just need to 
    know both Kochab Declination and Kochab geocentric altitude.
    
    For geocentric altitude I find 15�54.57' (you might a slightly different value 
    since I can not figure out what you mean by " Temp/pressure correction is +.2 
    ".
    
    Declination is equal to 74�07.08';
    
    When we combine both, we get an observed Latitude at Kochab transit time (04:09:44) equal to :
    
    N3128.7 (31�28.7').
    
    Since you request it Latitude 04:09 LT, we need to correct for change in 
    Latitude given the Ship's N/S CMG/SMG and I would then suggest that the 
    observed Latitude at 04:09 LRT is N3128.6 (31�28'6)
    
    
    Best Regards
    
    Antoine M. "Kermit" Couette
    
    
    PS : True ! Lower transits are quite rare. I shot only 2 in many years at sea 
    and they were "Full Local Apparent Noons", one with DENEB, and the second 
    with RIGIL KENT if I remeber well. I need to dig out in my Celestial 
    Navigation Logbooks and I will shortly publish both, ... just in your Honor 
    !!!
    
    
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