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    Re: Correction, correction in Tahnea problem.
    From: Hewitt Schlereth
    Date: 1997 Dec 10, 1:42 PM

    You could use the 1977 almanac for sun's GHA and declination, but you
    would need a calculator or SR table to reduce the sight. Almanacs for the
    sun repeat pretty closely every four years.
    
    To the best of my knowledge Bowditch had a 3- or four-page long term
    almanac--called Appendix H--through the green-covered editions, based on
    the same principle.
    
    As I recall the NA reduction table didn't come in until 1989 (?)
    
    HHew
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