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 at the church fair ("Let's rejoice and be merry"). Among them are Mařenka and Jeník. Mařenka is unhappy because her parents want her to marry someone she has never met. They will try to force her into this, she says. Her desires are for Jeník even though, as she explains in her aria "If I should ever learn", she knows nothing of his background. The couple then declare their feelings for each other in a passionate love duet ("Faithful love can't be marred"). As the pair leave separately, Mařenka's parents, Ludmila and Krušina, enter with the marriage broker Kecal. After