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: Impressed with the Raft Book
    From: Mike Boersma
    Date: 2010 Jan 31, 19:31 -0800

    Frank Reed wrote: "But in the real world, the observed times of sunrise and sunset are variable for a number of reasons and those variations will significantly diminish the accuracy of this approach to finding latitude."

    What might these reasons be? Refraction? Clouds?

    "It's certainly not a worthless method, but its accuracy is low."

    This method does not appear to be more or less accurate than other no instrument or crude instrument methods of determining latitude.

    I would be surprised if results by this method were better than 1/2d when attempted under real world conditions.
    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

    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