NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
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.
Roger
From: NavList@fer3.com [mailto:NavList@fer3.com] On Behalf Of Tony Oz
Sent: Tuesday, March 13, 2018 12:16 PM
To: rsinnott@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?
Regards,
Tony