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    Re: Instrument for solving spheric
    From: Alexandre Eremenko
    Date: 2012 Apr 26, 11:31 -0400

    Close inspection of pictures of astrocompasses
    suggests that the accuracy is likely to be 1 degree,
    no better.
    About the same as of the star globe in good condition.
    
    What puzzles me is how they were supposed to set this starcompass
    horizontally on a moving airplane:-)
    It has adjusting screws like an artificial horizon, and presumably
    bubble levels. The airplane must fly really straight and
    with constant speed to enable the navigator to use such a device.
    
    It is more useful for finding the directions after an emergency landing:-)
    
    Alex.
    
    On Thu, 26 Apr 2012, Geoffrey Kolbe wrote:
    
    >
    > At 15:00 26/04/2012,Zvi Doron wrote:
    >> You mean one minute
    >
    > No, I believe I reported Wolfgang accurately.
    >
    > Geoffrey Kolbe
    >
    >
    >> Sent from my HTC
    >>
    >>  Wolfgang said that with care, an accuracy of one degree was
    >> possible using the
    >> astro-compass.
    >>
    >> Geoffrey
    >
    >
    >
    >
    >
    > : http://fer3.com/arc/m2.aspx?i=119274
    >
    >
    >
    
    
    
    

       
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