[8] The C-type asteroid orbits the Sun in the middle main-belt at a distance of 2.3–3.2 AU once every 4 years and 6 months (1,653 days).

[1] This minor planet was named for Bianca Castafiore, a fictional character in the comic-strip Adventures of Tintin .

[9] The approved naming citation was published by the Minor Planet Center on 8 April 1982 (M.P.C.

[10] In September 2004, American astronomer Donald P. Pray obtained a rotational lightcurve of Castafiore from photometric observations.

[a] According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Castafiore measures 21.15 kilometers in diameter and its surface has an albedo of 0.160 (best result only),[5] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057, and calculates a diameter of 25.44 kilometers with an absolute magnitude of 11.7.