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    Re: Learn the stars, by phone
    From: Brad Morris
    Date: 2009 May 14, 22:03 -0400

    I took my Skyscout out on a very cloudy, rainy night here in the NE USA.  
    First I had it locate Saturn, right behind that cloud it said.  No way to 
    verify that by vision.
    
    Then I took my bar magnet and approached the device until it was about 1 foot 
    (300 mm) away.  The magentic field complaint appeared. As I pulled the magnet 
    away, the complaint disappeared.  Although there was some directional 
    sensitivity (top vs side vs front, etc) it was about a very unscientific 
    foot.
    
    Next I took the same magnet and attempted to lift a paper clip up off of a 
    table.  I had to approach to within 1 inch (25 mm) for it to move the paper 
    clip.
    
    That ends the "highly scientific" analysis. It sensed a small field at an impressive distance.
    
    I didn't try to see how it affected pointing accuracy, since there was nothing to see!
    
    Best Regards
    Brad
    
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