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
    Sun semidiameter
    From: Bill B
    Date: 2007 Apr 14, 17:40 -0400

    Looking at Frank's site
    
    http://www.clockwk.com/lunars/nadata_v5.html
    
    and Sun and Polaris Ephemerii�for Land Surveyors
    
    http://www.cadastral.com/2007ephs.htm
    
    for 14 May 2007 I find agreement in the semidiameter of the sun; 15!83
    (Frank) and  15' 49.6" = 15!83 (Cadastral).  Yet the nautical almanac lists
    SD as 15.9.  I see this happening on other dates as well.  I would expect it
    could happen near a rounding, point, say 15!9 one page and 16!0 the next,
    but that thought does check out.
    
    Why the difference in SD?
    
    Bill
    
    
    --~--~---------~--~----~------------~-------~--~----~
    To post to this group, send email to NavList@fer3.com
    To unsubscribe, send email to NavList-unsubscribe@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    

       
    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)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site