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    Re: Lunar distances
    From: Chuck Griffiths
    Date: 2002 Jan 25, 10:09 AM

    george@huxtable.u-net.com wrote:
    ...There's no escaping the fact that lunar distances are a complex business. If
    there existed accessible textbooks on the subject, I could have simply
    referred the reader to those. The only modern one I am familiar with is
    C.H.Cotter, "A History of Nautical Astronomy" (London, 1968), which is very
    hard to find.
    If any reader knows of other useful textbooks on lunars, please say. Eric
    Haberfellner tells me of  "Self-Contained Celestial Navigation with H.O.
    208" by John S. Letcher, Jr., published by International Marine Publishing
    Company in 1977.
    He says- "This book (to my suprise) has a chapter on "Time by Lunar
    Distance" and a chapter on "Time by Lunar Lines of Position". This would
    make it one of the few "modern" books that deals with this subject."...
    Which brings to mind the following:
    I'm curious whether anyone has an old enough edition of Bowditch to still have
    tables for clearing lunar distances. I believe that the tables and explanations
    were included until the mid-60's. What did these tables provide solutions for?
    My related question: Has anyone cataloged the tables and articles that have been
    removed from Bowditch over the years? I have to say, the 1995 edition, compared
    to  the 1977 edition, seems to have left out a lot of good information e.g.,
    correct plotting of high angle sights and the history of sight reduction
    techniques. If you start adding up just the few things that I'm aware of that
    have been taken out over the years - tables for clearing lunar distances,
    Ageton's tables, better explanations spherical trig, it seems like a collection
    of the "lost" Bowditch articles and tables would be a pretty nice reference to
    Chuck Griffiths
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