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    Re: Latitude by noon Sun sight
    From: Alexandre Eremenko
    Date: 2019 Dec 4, 19:48 +0000

    Correction to the Sun altitude near noon can be determined by the formula:
    
    r=1.042 .Pi.t^2/K=3.2735. t^2/K,
    
    where r is the correction in (arc)minutes, Pi=3.14159, t  is time in minutes 
    of time to/from noon, K=100.(tan(latitude) +/- tan(declination)),
    In the formula for K, we take minus sign if latitude and declination are of the same sign,
    and plus when they are of different sign.
    
    Example: t=2  min, K=8. Correction is 1.6.
    
    My (Soviet) Navigation tables published in 1943 give tables for K, and then a separate table for r.
    They also give a nomogram for graphic determination of r from t and K.
    
    I can scan this nomogram if anyone is interested.
    
    Alex. 
    
    

       
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