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    Re: How far is polaris?
    From: Michael Daly
    Date: 2007 Nov 26, 11:48 -0500

    Isonomia wrote:
    
    > 2400 Astronomical units
    
    This is not the distance from the Earth to Polaris.  This is the 
    distance between Polaris A (the star you see easily) and Polaris B, the 
    second brightest of the trinary system.  From the article:
    
    "The two smaller companions are: α UMi B, an F3V main sequence star 
    orbiting at a distance of 2400 AU, and α UMi Ab, a very close dwarf with 
    an 18.5 AU radius orbit. Recent observations show that Polaris may be 
    part of a loose open cluster of type A and F stars."
    
    
    If Polaris was at 2400 AU from Earth, it would be inside the Oort Cloud 
    and part of our solar system.  This would have created a very different 
    solar system and we likely would be here (planets would be ejected from 
    such a close binary system).
    
    Mike
    
    
    
    
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