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 as director of the Vienna State Opera, Mahler brought "The Bartered Bride" into the Vienna repertory, and conducted regular performances of the work between 1899 and 1907. Mahler's enthusiasm for the work was such that he had incorporated a quote from the overture into the final movement of his First Symphony (1888). When he became Director of the Metropolitan Opera in New York in 1907 he added the opera to its repertory. The New York premiere, again in German, took place on 19 February 1909, and was warmly received. "The New York Times" commented on the excellence of the staging