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: Instrumental error?
    From: Ken Muldrew
    Date: 2005 Apr 25, 09:59 -0600

    On 24 Apr 2005 at 16:28, Fred Hebard wrote:
    
    > One trick is to set the sextant with the objects slightly apart, as
    > appropriate to rising or setting, and wait for them to converge.  The
    > biggest challenge then is timing the convergence accurately.  This is
    > also a recommended trick for shots on water using a real horizon.  (It
    > doesn't work for meridian shots, such as the sun at noon, btw).
    
    That depends on how long your willing to wait.  ;-)
    
    Ken Muldrew.
    
    
    

       
    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