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    Re: Jupiter's moons
    From: Nigel Gardner
    Date: 2002 Mar 20, 17:08 -0500

    Herbert wrote 
    
    I am afraid I have not, in UK decent old sextants have been priced out of
    navigators' markets by being bought up by chi-chi antique dealers to sell
    to people to hang on a wall.  My own 'good' sextant is a modern Zeiss but
    with only one eyepiece.
    I looked in my copies of Nories Epitome (one 1805 and the other 1896) which
    give good, long and lucid descriptions of sextants. Both descriptions say
    that a sextant is normally equipped with two magnifying eyepieces of
    different strengths but neither sadly give any indication of what the
    stengths are.
    
    
    NG
    
    
    

       
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