2047 Smetana an albedo of 0.544. The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.30 – a compromise value between 0.4 and 0.2, corresponding to the Hungaria asteroids both as family and orbital group – and calculates a diameter of 3.85 kilometers with an absolute magnitude of 14.0. This minor planet was named for the Czech national composer Bedřich Smetana (1824–1884), best known for the opera "The Bartered Bride", the cycle of six symphonic poems "My homeland" and the string quartet "From my life". The approved naming citation was published by the Minor Planet Center before November 1977 (). 2047 Smetana
The Bartered Bride ("I can't get it out of my head"), but is interrupted by the arrival of a travelling circus. The Ringmaster introduces the star attractions: Esmeralda, the Spanish dancer, a "real Indian" sword swallower, and a dancing bear. A rapid folk-dance, the skočná, follows. Vašek is entranced by Esmeralda, but his timid advances are interrupted when the "Indian" rushes in, announcing that the "bear" has collapsed in a drunken stupor. A replacement is required. Vašek is soon persuaded to take the job, egged on by Esmeralda's flattering words ("We'll make a pretty thing out of you"). The circus folk leave. Vasek's