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
    Re: Polaris LTA
    From: Gary LaPook
    Date: 2016 Jan 9, 11:46 -0800

    I doubt that the overlap is accidental since it is in all years of the Air Almanac and the amount of overlap varies. I suspet that it is done for formating reasons. The number of entries needed varies with the declination of Polaris, four entries for every minute that the declination varies from 90 degrees north. When the declination is 89-11then there must be 196 entries but when it it 89-20 then there are only 160 entries. The table is eight columns wide and in 1982 there were 26 entries per column, a total of 208 and but only 196 were needed so an overlap of 12. In 2016 there are 23 entries per column a total of 184 but only 160 are now needed hence an overlap of 24. 

    See attached:

    gl



    File:



       
    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