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: Stereographic Projection of the Ecliptic
    From: David Pike
    Date: 2021 Mar 1, 03:15 -0800

    Newyddion da!  It’s St David’s Day.  The daffodils are starting to bloom, and my second-hand copy of Schroeder’s Practical Astronomy (Seryddiaeth Ymarferol), as recommended by Geoffrey Kolbe, has arrived from Anybook Ltd.  Why the Welsh theme?  Well, it’s ex-libris from the University College of North Wales, Bangor, and it’s only seventh-hand.  Between being bought in November 1957 for 25 UK shillings (25/-) and today, it’s been borrowed six times; the last time being 21 years ago in February 2000.  That averages approximately once per ten years.    It’s good to know interest in practical astronomy is booming in North Wales.   I was relieved to find the text is in English not Welsh.  It looks pretty good.  I suspect it’ll jump to the front of my reading on the exercise bike queue before ‘The Light Ages’ and ‘Heavenly Mathematics’ are completely finished.  I’m getting a bit bored with the Merry Monks of St Albin’s & Tynemouth.  DaveP


    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