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: Celestial Navigation without a sextant.
    From: Andr�s Ruiz
    Date: 2008 Mar 12, 08:21 +0100

    Extreme refraction happens after a warm front. After a cold front the 
    temperature falls and the atmosphere become more stable. The worse conditions 
    were found at sea between the warm and cold front and under a fair whether 
    with great evaporation. Inland with great insolation rare effects for 
    refraction could appear
    See: http://www.geocities.com/navigationalalgorithms/Meteorologia/Frentes.pdf
    Andr�s
    
    -----Mensaje original-----
    De: NavList@fer3.com [mailto:NavList@fer3.com] En nombre de Greg Rudzinski
    Enviado el: martes, 11 de marzo de 2008 23:39
    Para: NavList
    Asunto: [NavList 4649] Re: Celestial Navigation without a sextant.
    
    
    ... Extreme refraction can occure after the passage of a cold
    front. In this case opposing LOP's or a back sight will be needed to
    cancel out the refraction variable.
    
    --~--~---------~--~----~------------~-------~--~----~
    To post to this group, send email to NavList@fer3.com
    To unsubscribe, send email to NavList-unsubscribe@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    

       
    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