| albedo={{val|0.1973|0.029}}<
| mean_motion={{Deg2DMS|0.214770|sup=ms}} / day
| orbit_ref=
| observation_arc=124.34 yr (45416 d)
| uncertainty=0
}}Glauke ({{IPAc-en|ˈ|ɡ|l|ɔː|k|iː}} {{respell|GLAW|kee}}; minor planet designation: 288 Glauke) is a stony, tumbling asteroid and slow rotator from the intermediate asteroid belt, approximately 32 kilometers in diameter. It was discovered on 20 February 1890, by Robert Luther at Düsseldorf-Bilk Observatory in Germany. It was the last of his asteroid discoveries. It is named after Creusa (known as Glauce or Glauke), a daughter of Creon a king of Corinth in Greek mythology.
Description
Glauke has an exceptionally slow rotation period of about 1200 hours (50 days).[1] This makes it one of the slowest-rotating asteroids in the Solar System. The rotation is believed to be "tumbling", similar to the near-Earth asteroid 4179 Toutatis.
It is a common, stony S-type asteroid in both the Tholen and SMASS classification.
References
1. ^{{cite web|title=Radar Observations of Asteroid 288 Glauke|url=http://echo.jpl.nasa.gov/asteroids/ostro+2001_glauke.pdf|publisher=NASA JPL|accessdate=12 October 2011}}