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    Re: Unrealistic expectations
    From: Alexandre Eremenko
    Date: 2013 Oct 6, 15:04 -0400

    What instrument did you use for solar azimuth observations?
    > I bought the Multiyear Interactive Computer Almanac from Willman-Bell,
    > calculated a series of solar positions by second, and made observations
    > during that sequence period.  I then compared my observations with the
    > calculations.  I was in error on average 4.3 seconds (time) with a SD of
    > 8.57 seconds.  The sun is moving an arc minute every 4 seconds.  With my
    > current skill set locating North within 20" is out of reach.
    > I am not about to argue with my own numbers.  Still, it is difficult to
    > understand how I could miss the alignment of the trailing edge of the Sun
    > with my vertical cross hair by multiple seconds.
    > What is a reasonable accuracy expectation for series of solar azimuth
    > observations?
    > Thank you.
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