Antonín Bečvář (Czech pronunciation: [ˈantoɲiːn ˈbɛtʃvaːr̝̊]; 10 June 1901 – 10 January 1965) was a Czech astronomer who was active in Slovakia. He was born (and died) in Stará Boleslav. Among his chief achievements is the foundation of the Skalnaté Pleso Observatory and the discovery of the comet C/1947 F2 (Bečvář) (also known by the designations 1947 III and 1947c). His lifelong illness led him to the High Tatras where he founded the observatory.
Bečvář is particularly important for his star charts: he led the compilation of the Atlas Coeli Skalnate Pleso (1951), published by Sky Publishing Corporation as the Skalnate Pleso Atlas of the Heavens, which was the state-of-the-art atlas of its kind until Wil Tirion's "Sky Atlas 2000.0" in 1981. A dozen star names in the atlas are of unknown origin,, no connection to any language or previous source has been discovered despite an extensive search.
He also compiled Atlas eclipticalis, 1950.0 (1958), Atlas borealis 1950.0 (1962), and Atlas australis 1950.0 (1964).
The asteroid 4567 Bečvář and the crater Bečvář on the Moon were named in his honour. American Avant-garde composer John Cage used Bečvář's star charts as the basis of several works: Atlas Eclipticalis (1961–62), Etudes Australes (1974–75), Etudes Boreales (1978) and Freeman Etudes (1977–80, 1989–90).
- "Obituary: Antonín Bečvář". Physics Today. 18 (9): 113. September 1965. doi:10.1063/1.3047707.
- Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.
- Kunitzsch, Paul; Smart, Tim (2006). A Dictionary of Modern star Names: A Short Guide to 254 Star Names and Their Derivations (2nd rev. ed.). Cambridge, Massachusetts: Sky Pub. ISBN 978-1-931559-44-7.
- Becvar's sky atlases
- Star Map in Galactic Perspective Uses imagery from Becvar's Atlas of the Heavens.
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