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: Impossible lunar example. was: Short-cut lunars. was: Clearing lunars
    From: George Huxtable
    Date: 2010 Aug 28, 14:14 +0100

    Kent Norstrom wrote-
    George mentions that the 1780 issue of the Tables Requisite isn't scanned
    into Googles. I believe that the edition should be 1781, which is available
    on Googles. Further, my understanding is that there is no edition published
    in the time span 1767 to 1781.
    Kent is right, and I was careless, in stating 1780 without checking, when 
    it should have been 1781.
    However, I've taken another look at Google Books, which appears to confirm 
    that the only full view it provides me of Maskelyne's Tables Requisite is 
    of the 1802 edition, and the 1781 edition is available to me here as "book 
    overview" only, which prevents it being read. Unless I'm misunderstanding 
    something, which is all too possible.  My own access to the first edition 
    of 1767 is via a (facsimile) print.
    If Kent has better access to the 1781 ed. than I do, I wonder if it might 
    be possible for him to look in and select for us the appropriate page or 
    two that Frank was referring to. It would come somewhere in the examples of 
    how to clear a lunar distance (perhaps by more than one method) and should 
    be readily identifiable by its value of apparent lunar distance between 
    centres of 108� 30' 08".
    contact George Huxtable, at  george@hux.me.uk
    or at +44 1865 820222 (from UK, 01865 820222)
    or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK. 

    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