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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Why are NA sight reduction tables not popular?
    From: Alan S
    Date: 2012 Apr 8, 13:43 -0700

    Geoffrey Kolbe

    I believe the computer program you referencre is Celestial Tools, the latest version of which is version 2.7 something I think.

    It has the capability of, among other things, reducing sights using Law of Cosines and or Nautical Almanac Concise Tables, whichever one chooses. You can, if desireed pr4int out the entire calculation, time diagframs and fixes.

    One is admonished not to use for actual navigation, the thing being descsribed, as I recall, as "medium accuracy". I don't know why this admonition, unless it be an exercise in CYA.

    Alan
    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

    Enter the email address associated with your NavList messages. Your NavList code will be emailed to you immediately.
    Email:

    Email Settings

    NavList ID 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