885 Ulrike

[1] The presumed C-type asteroid has a short rotation period of 4.9 hours and measures approximately 33 kilometers (21 miles) in diameter.

Lutz Schmadel, the author of the Dictionary of Minor Planet Names, considers this interpretation the most likely because the discoverer, who studied at Göttingen University, was an expert in German literature.

It is an assumed carbonaceous C-type asteroid,[9] which agrees with the overall spectral type assigned to members of the Themis family.

Lightcurve analysis gave a rotation period of 4.90±0.05 hours with a high brightness variation of 0.55±0.05 magnitude, indicative of an elongated shape (U=3).

[6][7][8] The Collaborative Asteroid Lightcurve Link adopts the results from IRAS, that is an albedo of 0.083 and a diameter of 33.43 kilometers based on an absolute magnitude of 10.7.