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    Fwd: Historical Reflections on the Work of IAU Commission 4 (Ephemerides)
    From: Paul Hirose
    Date: 2015 Nov 10, 16:25 -0800

    The forwarded message below is from the HASTRO-L mailing list. One
    interesting paragraph from the article:
    
    "Throughout the 1930s, the British Nautical Almanac included detailed
    explanations, and by the end of that decade each volume was almost 1000
    pages. Although the explanations were of value to many astronomers, much
    of this information was unnecessary to the daily user of the
    publication, and there were complaints regarding the books being
    unwieldy. Cutting the size of the yearly almanac by providing a more
    permanent explanatory supplement was under consideration at Her
    Majesty’s Nautical Almanac Office (HMNAO) when World War II began. At that
    time, “a drastic cut was imposed on the overall size of subsequent
    editions by the exigencies of war” (Nautical Almanac Offices of UK and USA
    1961). The preface to the 1942 almanac describes separating the
    ephemeral material from the permanent data and explanations, and also
    states, “It is possible that publication of the Supplement will be
    delayed for some time.” In fact, it did not get published for 20 more
    years."
    
    
    -------- Forwarded Message --------
    Subject: [HASTRO-L] Historical Reflections on the Work of IAU Commission
    4 (Ephemerides)
    Date: Mon, 9 Nov 2015 10:31:53 +0000
    Reply-To: History of Astronomy Discussion Group 
    To: HASTRO-L{at}listserv.wvu.edu
    
    
       http://arxiv.org/abs/1511.01546
    
    Historical Reflections on the Work of IAU Commission 4 (Ephemerides)
    
    George H. Kaplan, John A. Bangert, Agnes Fienga, William Folkner,
    Catherine Hohenkerk, Marina Lukashova, Elena V. Pitjeva, P. Kenneth
    Seidelmann, Michael Sveshnikov, Sean Urban, Jan Vondrak, Julia
    Weratschnig, James G. Williams (Submitted on 4 Nov 2015)
    
    As part of a reorganization of the International Astronomical Union
    (IAU), Commission 4 (Ephemerides) went out of existence after the IAU
    General Assembly in August 2015. This paper presents brief discussions
    of some of the developments in fundamental astronomy that have
    influenced and been influenced by the work of Commission 4 over its
    96-year history. The paper also presents notes about some of the
    publications of the national institutions that have played an essential
    role in the commission's mission. The contents of this paper were
    submitted for Commission 4's final report, to appear in IAU Transactions
    Vol. XXIX-A.
    
    

       
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