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 dance from "The Brandenburgers of Bohemia". When "The Bartered Bride" returned to the Provisional Theatre in January 1869, this dance was removed, and replaced with a polka. A new scene, with a drinking song for the chorus, was added to act 1, and Mařenka's act 2 aria "Oh what grief!" was extended. So far, changes to the original had been of a minor nature, but when the opera reappeared in June 1869 it had been entirely restructured. Although the musical numbers were still linked by dialogue, the first act had been divided in two, to create a three-act opera. Various