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: CP-300/U USAF Star Finder
    From: Gary LaPook
    Date: 2021 Jan 23, 02:22 -0800

    No, I think it is useful for identifying stars for observation just like the 2102-D. In some ways it is not as convient and in other ways it is more convenient. One disadvantae is not having a grid for plotting planents but that is easily solved by just drawing a circle to represent the eclyptic so then you only have to reverse the process to determine the LHA of the planet and then plot that LHA on the eclyptic since that is where you find solar system objects. JUst set your drawing compass to the radius of the equator on the device and then offset the center point of the drawing compass by 23 degrees and then draw the eclyptic which plots as a circle on this projection.I had modified my 2102-D like this. 

    See prior posts on this.

    http://fer3.com/arc/m2.aspx/CP300U-USAF-Star-Finder-LaPook-jun-2019-g45334

    http://fer3.com/arc/m2.aspx/CP300U-Star-Finder-Morris-mar-2015-g30634

    http://fer3.com/arc/m2.aspx/CP300U-USAF-Star-Finder-EdPopko-may-2019-g45103

    http://fer3.com/arc/m2.aspx/CP300U-Star-Finder-LaPook-may-2015-g31471

    gl

       
    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