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    Navigation Spreadsheets now free
    From: Peter Hakel
    Date: 2012 Sep 29, 10:48 -0700
    Navigation Spreadsheets are now available via free download at:
    http://www.navigation-spreadsheets.com/

    Almanac spreadsheets are good for the year 2013 without the need for any changes or updates:
    http://blog.navigation-spreadsheets.com/

    The data comparisons were made against the 2013 Commercial Edition of the Nautical Almanac (US$ 19.77 on Amazon).  I was a little surprised to see the difference of 0.4' in the GHA of Venus developing toward the end of 2013; I'll keep an eye on this next year when I check the 2014 numbers.


    Peter Hakel
       
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