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
    Carry on, Mr. Bowditch
    From: Dave Weilacher
    Date: 2003 Jan 15, 10:51 -0800

    I just finished reading this fictionalized biography about Nathanial Bowditch.
    
    It leads me to believe that chronometers were prohibitively expensive into the
    1820's.  Bacause of this, lunars were still in common use.
    
    According to the story, until Mr. Bowditch invented the three star lunar, a
    lunar consisted of waiting for a known star to occult the moon.
    
    I understood little of this.  Would anyone care to explain what this means in
    detail?  What purpose does a sextant serve in this 'occulting' lunar process.
    
    It also went on about a star had to be below the moon and not above it for
    this procedure to work. (I may remember this backwards)
    
    A problem with fictionalized biographies is telling where the bio stops and
    the fiction starts.
    
    Dave Weilacher
    .US Coast Guard licensed captain
    .    #889968
    .ASA Instructor Evaluator & Celestial
    .    Nav. Instructor #990800
    .IBM AS400 RPG contract programmer
    
    
    

       
    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