Welcome to the NavList Message Boards.


A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

Compose Your Message

Add Images & Files
    Re: An azimuth nomogram: what's under the hood?
    From: Roger W. Sinnott
    Date: 2018 Mar 14, 07:02 -0400

    Hi Tony,


    I don’t know how that one was made, but I’ve created a number of nomograms similar to it.  They are called Clark’s nomograms, where the outer two scales are curved.  I think this form is more beautiful and easier to read than the more common type of nomogram made with three vertical straight-line scales.


    Attached are the notes I made after studying the book cited at the end.





    From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Tony Oz
    Sent: Tuesday, March 13, 2018 12:16 PM
    To: rsinnott{at}post.harvard.edu
    Subject: [NavList] Re: An azimuth nomogram: what's under the hood?

    Dear Roger,

    Thank you for posting yet another variant of the azimuth nomogram (though it is for the Sun only). I'm really interested how did they do it?



    File: 141606.clark-nomogram.pdf
    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