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: Sextant Accuracy and anomalous dip
    From: Fred Hebard
    Date: 2003 Mar 21, 22:18 -0500

    Bruce raises the intriguing point that the people who established the
    cable station could get time over the wire to establish its location.
    However, why couldn't the repair ship do the same?  Surely the time of
    the captain and first officer over a half day to a whole day was more
    valuable than a few time transmissions.  I hazard that the delays in
    propagating a signal were unknown enough that accurate time could not
    be transmitted long distance.
    
    This leads us back to Jared's question, where they did seem to be
    establishing their observatory in a random spot.  However, perhaps it
    wasn't too difficult to measure the distance to a known spot in the
    vicinity, or perhaps the spots were known and had been located by
    observing the moons of Jupiter or some such.
    
    Fred Hebard
    
    
    

       
    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