[citation needed] It orbits the Sun in the outer main-belt at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,991 days).

[3][12] In October 2010, a rotational lightcurve of Český Krumlov was obtained from photometric observations by astronomers at the Palomar Transient Factory in California.

Lightcurve analysis gave a rotation period of 438.7098 hours with a brightness variation of 0.63 magnitude (U=2).

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Český Krumlov measures between 22.51 and 36.33 kilometers in diameter and its surface has an albedo between 0.028 and 0.06.

[3] This minor planet was named after the historic Czech town of Český Krumlov, near to the location of the discovering Kleť Observatory.