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
    Re: Nautical astronomy was different
    From: Alexandre Eremenko
    Date: 2004 Oct 24, 13:39 -0500

     In other words, they finally found in the beginning of
    the XX's century that Ptolemy's view of the Earth as
    fixed indeed has some advantages:-)
    
    On Sun, 24 Oct 2004, Bruce Stark wrote:
    
    > The change Frank is referring to is to the GHA system.
    
    > sometime in the first
    > half of the twentieth century. Until then,
    > Almanac data was independent of the
    > earth's rotation. The Almanac gave the positions of the heavenly bodies in
    > relation to the first point of Aries and the equinoctial.
    
    Alex.
    
    
    

       
    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