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    Re: Jupiter satellites
    From: Frank Reed
    Date: 2005 Apr 8, 18:34 EDT

    George H wrote:
    "In contrast, even  Maskelyne's predictied times of such
    events were given to the nearest second  of time, right back to the first
    Nautical almanac of 1767, though I have  doubts whether his calculations
    were correspondingly precise."
    
    They  weren't, and I think Maskelyne says so in the explanation in the back
    of the  almanac.
    
    G. B. Airy wrote a very nice little book back in 1834 on  perturbation theory
    and the Galilean moons of Jupiter: "Gravitation - An  Elementary Explanation
    of the Principal Perturbations in the Solar System". This  was aimed at a
    literate, popular audience so there are few if any equations but  the explanations
    are still rather "intricate". There was a modern version  printed in 1969
    because of its possible relevance to artificial satellite  orbital dynamics. Jean
    Meeus is a fan of it.
    
    -FER
    42.0N 87.7W, or  41.4N 72.1W.
    www.HistoricalAtlas.com/lunars
    
    
    

       
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