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    Re: Photo sextant sights
    From: Bill B
    Date: 2008 Aug 03, 17:54 -0400

    George Huxtable asked
    
    > It seems inherently unlikely that the resolution was anything like that. 15
    > pixels per minute would require about 450 pixels across the Moon, and nearly
    > 3000 pixels across the gap between Moon and Jupiter, which is only part of a
    > screenwidth (and it's not clear where the screen width limits are). Would
    > that ever be possible, even with the highest-qualitydigital camera?
    
    If I am reading you (and doing the math correctly), sure.  A 6-megapixle
    chip with 2:3 aspect ratio would have a 2000 x 3000 pixel matrix (ignoring
    the finer technical points like "useable pixels etc).  A 10-megapixle chip
    has a long dimension of approx. 3873 pixels.
    
    A 10-megapixel chip was available only in top end "35 mm" SLRs a not too
    many years ago. Now you can get that resolution in a point-and-shoot camera
    at a discount store.
    
    Bill B
    
    
    
    
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