Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Add Images & Files
    Re: Compass Rose
    From: Michael Wescott
    Date: 2001 Mar 19, 4:03 PM

    >> The compass rose on a chart shows the True heading on the
    >> outer ring and the Magnetic heading on the inner ring.
    >> What is the function of the innermost (third) ring?  It
    >> does not correspond to markings on either the True or
    >> Magnetic rings and I am baffled as to what its' purpose is.
    >> Can anyone on the list provide an answer?  Thanks.
    > Just looking at it, it divides the circle into 32, and each
    > of those parts in 4. Points? perhaps, as in "Three points
    > off the starboard bow"? I never noticed that it was there
    > until you pointed it out.
    Rodney Myrvaagnes gets full marks.
    >From the American Practical Navigator (Glossary)
    compass points. The 32 divisions of a compass, at intervals of 11.25
            degrees. Each division is further divided into quarter points.
    compase rose. A circle graduated in degrees, clockwise from 0 at the
            reference direction to 360, and sometimes also in compass points.

    Browse Files

    Drop Files


    What is NavList?

    Join NavList

    (please, no nicknames or handles)
    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 Settings

    Posting Code:

    Custom Index

    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