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    Latitude at noon
    From: John D. Howard
    Date: 2017 Mar 31, 12:47 -0700

    Help !

    I have been going over Frank's data for Lat & Long around noon and have followed the discussion with intrest. That finding longitude is difficult I understand but Latitude?

    When I do a set of sights around noon I record the max Hs ( and time ).  From Frank's data the max was 41d 30.0m.  Now subtract 3.8m IE on arc, subtract 4.8m for dip, add 15.2m for LL and refraction I get Ho 41d 36.6m

    The dec is S 6d 56.6m which should give Latitude as N 41d 26.8m.

    What am I doing wrong?

    John H. 

       
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