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
    From: Arthur Pearson
    Date: 2003 Mar 31, 22:10 -0500

    Ladies and Gentlemen,
    The lunar distance has been a frequent topic here on Nav-L with numerous
    interrelated discussions appearing over the last couple of years. I have
    put together a website that I hope will make it easier for those of us
    interested in lunars to find all the various postings, articles and
    resources that have been mentioned in these discussions.
    www.LD-DEADLINK-com is intended to be a starting point for those just
    getting started with lunars and a reference site where more experienced
    lunarians can find in-depth information and resources.  At present, the
    site offers:
    * A one page introduction for the complete beginner.
    * An article I wrote explaining lunar distance method with diagrams (and
    without formulae) and offering instructions on how to observe, clear and
    solve a backyard lunar.
    * Spreadsheets for making the calculations needed to clear and solve a
    backyard lunar.
    * Links to where you can buy Bruce Stark's book of tables for clearing
    and solving lunars.
    * Links to all four of George Huxtable's "About Lunars" postings (the
    original and still the best).
    * Links to various in-depth articles on aspects of the lunar distance
    and its history.
    * Links to selected Nav-L discussions on lunar topics (using calculated
    altitudes, using sun sights for local time and getting longitude from
    GMT ~ local time, parallactic retardation, raw data from lunars
    observations and analysis of same).
    I hope what is on the site now is only a start.  PLEASE send me any
    suggestions for additional books, publications, organizations or other
    information relating to the lunar distance and I will happily post it on
    the site.  This includes Nav-L discussions on lunars that I overlooked
    but that you found useful.  I would like to expand the content of the
    site and have it reflect our community's combined knowledge on the
    theory, history and practice of using the lunar distance.
    As our Nav-L lunar discussions go forward, I will be happy to post
    graphics or attachments that can't be distributed via the list server
    but which facilitate the dialogue.  I will continue to build up the
    Nav-L links section of the site so we can conveniently reference past
    lunar discussions.
    Thanks in advance for any suggestions on expanding the content and
    improving the presentation.
    Arthur N. Pearson
    Belmont, Massachusetts, USA

    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