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: Stereographic Projection of the Ecliptic
    From: Wolfgang Hasper
    Date: 2021 Feb 15, 09:30 +0100
    CAD drawing space is limitless :)
    and it is not that hard to use, once you get the hang of it.
     
    QCad is a simple but handy tool, the free version should suffice for the task at hand.
    It is available for both Linux and Win, not sure about Apple.
    https://qcad.org/en/
     
    you can print to pdf or export svg verctor graphics for printing or sharing,
    the generic file format is dxf, so fully compatible
     
    Best regards
    Wolfgang
     
     
     
    Gesendet: Montag, 15. Februar 2021 um 08:00 Uhr
    Von: "Geoffrey Kolbe" <NoReply_GeoffreyKolbe@fer3.com>
    An: wolfgang.hasper@web.de
    Betreff: [NavList] Re: Stereographic Projection of the Ecliptic

    David

    The best book I found for the theory of astrolabes and how to build them was "Practical Astronomy" by W. Schroeder, published by Werner Laurie in 1956.

    You need to use the largest piece of paper you can find to draw out the projections so you can make an astrolabe of useful size. The astrolabe I made in the photo below is about five inches across and I needed two A3 pieces of paper taped together to make that.

    File:

    View and reply to this message

       
    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