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: New to the list
    From: John Huth
    Date: 2009 Jun 4, 11:01 -0400
    Yes, you're right - the largest change could only be of order 30 nm or so.   I have to go back to book and recheck it.  

    On Thu, Jun 4, 2009 at 5:57 AM, George Huxtable <george{at}hux.me.uk> wrote:

    John Huth referred to-

    2.) The Freuchen-Rasmussen crossing of the North Greenland icecap.   Peter
    Freuchen slept over 24 hours after the west-east crossing and got mixed up
    by a day.   This was in June, and he didn't catch his error.   On their
    return on the east-west recrossing, the intersected the west coast about 60
    miles north of their target position.     Primary source = Arctic Adventure
    by Freuchen.   It's an interesting error because the declination of the sun
    changes little in June, but much more rapidly around the equinox, so that
    fact conspired to cause the largest problem for them on return.


    Comment from George-

    Doesn't really fit with a 60-mile Northward error, though. Even at an
    equinox, the Sun's declination is only changing enough in a day to account
    for an error of 25 miles or so in latitude.

    contact George Huxtable, at  george{at}hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.

    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To unsubscribe, email NavList-unsubscribe@fer3.com

    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