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 by Lunar Distance
    From: Alexandre Eremenko
    Date: 2006 Oct 15, 12:52 -0400

    
    Dear Frank,
    
    > It's 60 compared to observations made relative to a
    > perfect terrestrial
    > horizon.
    
    Let us better compare with ordinary Lunars.
    It is less accurate than the ordinarey Lunars by a factor
    of two, if the Moon is near zenith.
    And by a factor of 4 if the Moon's alt is 30 degrees.
    
    > Just so we're clear, unless
    > I'm missing something, your point "b" is
    > nothing more than the usual condition for lines of
    > position: you get
    > better results when the lines of position have a significant angle
    > between them.
    
    Yes, this is what I mean by b).
    
    > "Now it is hard for me to believe that one can
    > measure distances with 0.1 or even 0.2 accuracy
    > permanently and reliably"
    >
    > Sure you can! :-)
    
    So far I cannot.
    I hope we will clarify the reasons after you test
    my sextant, and I test my observation skills/abilities
    with your sextant.
    
    Alex.
    
    
    --~--~---------~--~----~------------~-------~--~----~
    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