Welcome to the NavList Message Boards.

NavList:

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

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    Name or NavList Code:
    Email:
       
    Reply
    GMT from Jupiter's moons
    From: Fred Hebard
    Date: 2004 Jul 13, 23:40 -0400

    This is more of a surveying problem rather than a marine navigation
    problem, and primarily of historical interest, but....
    
    All the ephemerides I have seen for occultations of Jupiter's moons are
    timed to the minute.  I have not seen tables for occultation of stars
    by the moon.  Was one minute the limit of resolution for determining
    GMT in the old days or could averaging of numerous observations give a
    more accurate determination of Greenwich time?
    
    Thanks,
    
    Fred
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID Code:

    Custom Index

    Subject:
    Author:
    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