| Minorplanet: | yes |
| Background: |
|
| 288 Glauke | |
| Discovered: | 20 February 1890 |
| Mpc Name: | (288) Glauke |
| Alt Names: | A890 DA, 1955 MO 1959 GB, 1961 WF |
| Pronounced: | [1] |
| Named After: | Creusa |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 2.76155AU |
| Perihelion: | 2.19625AU |
| Aphelion: | 3.32685abbr=onNaNabbr=on |
| Eccentricity: | 0.20470 |
| Period: | 4.59 yr (1676.2 d) |
| Inclination: | 4.33517° |
| Asc Node: | 120.135° |
| Arg Peri: | 84.8286° |
| Rotation: | 1170abbr=onNaNabbr=on |
| Spectral Type: | S  |
| Abs Magnitude: | 9.84 |
| Albedo: | < |
| Mean Motion: | / day |
| Orbit Ref: |   |
| Observation Arc: | 124.34 yr (45416 d) |
| Uncertainty: | 0 |
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.[2]
Glauke has an exceptionally slow rotation period of about 1200 hours (50 days).[3] 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.