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.[2]
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.[3]
He also compiled Atlas eclipticalis, 1950.0 (1958), Atlas borealis 1950.0 (1962), and Atlas australis 1950.0 (1964).
^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. ISBN978-1-931559-44-7.