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: Lunars using Bennett
    From: Frank Reed
    Date: 2008 Jul 03, 12:46 -0400

    George, you wrote:
    "Measuring a lunar distance is a means to an end; the end being to establish
    Greenwich time"
    
    A small correction: measuring lunars WAS a means to an end (establishing
    GMT), a long time ago. But nobody loses GMT anymore. Today most people use
    lunars to test their sextants and their skills. In that case, the final step
    is calculating the difference between the cleared lunar and the predicted
    lunar at a known instant of GMT. One could also use them to get lunar lines
    of position, as I've demonstrated several times.
    
    I think it's important to remember that shooting lunars for GMT is basically
    a sort of antiquarian game --a form of historical reconstruction. And
    different people will have different rules for this game. Even one person
    will play the game differently at different times. Sometimes we apply modern
    solutions to the historical problem. Other times we try to use the original
    methods and tables. But in the end, there's no one way to go about it.
    
     -FER
    
    
    
    --~--~---------~--~----~------------~-------~--~----~
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To unsubscribe, email 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