Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    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.
    42.0N 87.7W, or  41.4N 72.1W.

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.

    Email Settings

    Posting Code:

    Custom Index

    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site