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: Sun's average declination
    From: Lu Abel
    Date: 2015 Mar 15, 17:18 +0000
    I was wondering that, too, but given that the sun's maximum declination north and south are equal, it's only the speed at which one "traverses" the analemma that gives an answer to the puzzle.

    I love graphics that explain complex ideas with intuitive simplicity, and the analemma is one of my favorites.

    But it's really only showing the sun's declination over the course of a year and the Equation of Time.   One would have to go to the text typically attached to an analemma to see dates when the sun is in a certain position on the analemma and from those figure out that the sun spends slightly more time north of the equator than south.

    From: Greg Rudzinski <NoReply_Rudzinski@fer3.com>
    To: luabel@ymail.com
    Sent: Sunday, March 15, 2015 9:36 AM
    Subject: [NavList] Re: Sun's average declination

    I'm betting the Analemma figures into this puzzle. 
    Greg Rudzinski

    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