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    Re: sextant precision.
    From: Frank Reed CT
    Date: 2005 Jun 21, 01:23 EDT

    Bill you wrote:
    " I could not distinguish and  difference with my Astra."
    
    A null result is a good  result!
    
    And:
    "I found it difficult as overlap was difficult  to
    establish when one of the images was much brighter than the other,  and
    wonder what affect irradiation will have on the whole process when we  move
    from two bright images to one bright and one dim image."
    
    I find  this easier to do at high magnification. I agree that the phenomenon
    of  "irradiation" may be an issue, and I have a hunch (and that's all) that
    this is  minimized at high magnification. So use your best  telescope.
    
    -FER
    42.0N 87.7W, or 41.4N  72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    

       
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