Abstract
On 22 October 1922 IAU Circular No. 1 was issued from the Copenhagen Observatory by Elis Strömgren; on 20 October 1947 J. M. Vinter Hansen issued Circular No. 1112; and on 20 October 1972 Circular No. 2452 was issued from the Smithsonian Astrophysical Observatory by Brian G. Marsden. As is clear from the report below, the 50-year average of some 50 Circulars per year has been consistently exceeded in recent years, although in view of the tremendous growth in astronomical activity generally, this should scarcely be surprising. I am strongly impressed by this long and continuous cooperation among astronomers around the world, and it is a great pleasure for me to express my appreciation to all who have contributed to the activity of the Central Bureau.
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© 1973 International Astronomical Union
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De Jager, C. (1973). Astronomical Telegrams. In: De Jager, C. (eds) Transactions of the International Astronomical Union Volume XVA. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2587-4_3
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DOI: https://doi.org/10.1007/978-94-010-2587-4_3
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