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
    or...
       
    Reply
    Re: Latitude and Longitude by "Noon Sun"
    From: Robert Gainer
    Date: 2005 Jun 7, 09:52 +0000

    Frank,
    I think the sun does peek out at noon more often then you realize. I think
    the reason is that at lower altitudes the sun must pass thou the atmosphere
    at an oblique angle and there are more clouds to be passed. The chance of
    them all agreeing to get out of the way at the same time is slim to none. At
    noon the sun is at its closest in terms of how much of the atmosphere it
    must pass though and if the clouds overhead break for a moment then you have
    a sight.
    
    I have used the noon sight to get my longitude after a spell of bad weather
    or a period of extended fog in the North Atlantic. Anything that would tend
    to improve your position is worthwhile in the right circumstances. To have
    an approximation that is within 15 miles is better then one that is within
    30 miles. In addition, a small-unpowered (22-foot in my case) sailboat at 55
    degrees north and 55 degrees west is affected by the currents to a great
    degree and will have a very inaccurate DR within just a few days.
    Robert Gainer
    
    _________________________________________________________________
    Don�t just search. Find. Check out the new MSN Search!
    http://search.msn.click-url.com/go/onm00200636ave/direct/01/
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    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:

    Email Settings

    Posting 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