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: Preston's paper on Lewis & Clark's Navigation
    From: Bruce Stark
    Date: 2003 Jun 7, 22:31 EDT

    Fred,
    
    Unfortunately I haven't gotten back to Lewis and Clark this year, but keep
    hoping to. As to the latitude errors:  5' my elbow! After the Mandan Villages it
    was more like half a degree! We discussed this on the list before you joined.
    Last August I tried to show why the smaller errors were not surprising, and
    gave a definite reason for that huge error. That post, which included the
    numbers from the Journals, is at:
    
    http://www.i-DEADLINK-com/lists/navigation/0208/0004.html
    
    Gary Moulton's The Definitive Journals of Lewis and Clark is the place to get
    any data you want. It's all there, and it's in paperback now.
    
    Preston was trying to understand the nautical astronomy of that era in terms
    of twentieth century celestial. Still, it's a valuable contribution. We
    discussed his paper on the list some time back. My post is at:
    
    http://www.i-DEADLINK-com/lists/navigation/0207/0020.html
    
    Bruce
    
    
    

       
    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