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: Classification of the methods for clearing the Lunar Distances
    From: George Huxtable
    Date: 2003 Apr 7, 23:13 +0100

    Thanks to Jan Kalivoda for a masterly summary of the various lunar-distance
    correction methods, which I will print off and slip into my copy of Cotter.
    He must have a superb library available in Prague, or else has done much
    travelling to collect his information.
    He ends by saying-
    >Thank you for your corrections and supplements.
    There's only one comes to my mind. Under "Short", or "approximate" methods,
    he describes the lunar-distance triangle, and says-
    > ....But the sections mM and sS are very short (half degree at most, but
    >mostly shorter), which is essential for further procedures.
    As I see it, the arc mM represents the (parallax - refraction) correction
    for the Moon's altitude, and will normally be around one degree at low Moon
    altitudes, not "half degree at most".
    George Huxtable.
    contact George Huxtable by email at george@huxtable.u-net.com, by phone at
    01865 820222 (from outside UK, +44 1865 820222), or by mail at 1 Sandy
    Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

    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