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: Precision, Averaging
    From: Frank Reed CT
    Date: 2004 Oct 9, 18:05 EDT
    Alex E wrote:
    "b) the more sophisticated averaging, by planning the observations
    in such a way that most of the errors tend to cancel each other.
    Like averaging the lunar distances East and West of the Moon."

    This was recommended in various works on nautical astronomy, but at sea, it wasn't worth much. It doubles the work load of a procedure that already took about half an hour (ten minutes for sights, twenty for reduction).

    Frank R
    [ ] Mystic, Connecticut
    [X] Chicago, Illinois
       
    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)