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    Re: Can anyone tell me why my sextant has two sunshades?
    From: Frank Reed CT
    Date: 2006 Mar 14, 03:17 EST

    Bill you wrote:
    "My Astra III B (circa 2005)  has a pair of shades
    (index and horizon) that transmit so little I cannot  make out the sun in
    June at 40N.  I can only surmise that if the sun has  a declination similar
    to my latitude in January, it will be of more use than  some other shade
    combination. "
    
    The Sun is only a tiny bit brighter  when it's straight up, so I think we
    have to face up to the same explanation as  for that M.A.C. sextant: bad design
    (or bad execution of good design by the  manufacturer). I have an Astra III B
    (brand new and never used, but maybe ten  years old --ebay again) and all the
    shades make sense.
    
    -FER
    42.0N  87.7W, or 41.4N 72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    

       
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