288 Glauke

Glauke (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.[3]

288 Glauke
Orbital diagram
Discovery
Discovered byRobert Luther
Discovery siteDüsseldorf-Bilk Obs.
Discovery date20 February 1890
Designations
(288) Glauke
Pronunciation/ˈɡlɔːkiː/[1]
Named after
Creusa
(a.k.a. Glauce or Glauke)
A890 DA, 1955 MO
1959 GB, 1961 WF
Main belt
Orbital characteristics [2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc124.34 yr (45416 d)
Aphelion3.32685 AU (497.690 Gm)
Perihelion2.19625 AU (328.554 Gm)
2.76155 AU (413.122 Gm)
Eccentricity0.20470
4.59 yr (1676.2 d)
176.219°
0° 12m 53.172s / day
Inclination4.33517°
120.135°
84.8286°
Physical characteristics
Dimensions32.21±2.2 km (IRAS)[2]
1,170 h (49 d)[2]
0.1973±0.029<[2]
S [2]
9.84[2]

    Glauke has an exceptionally slow rotation period of about 1200 hours (50 days).[4] 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.[2]

    References
    1. 'Glauce', 'glaucous' in Noah Webster (1884) A Practical Dictionary of the English Language
    2. "JPL Small-Body Database Browser: 288 Glauke" (2012-01-04 last obs). Jet Propulsion Laboratory. Retrieved 11 May 2016.
    3. Schmadel, Lutz D (2007). Dictionary of Minor Planet Names (5th ed.). Berlin Heidelberg New York: Springer. p. 40. ISBN 3-540-00238-3.
    4. "Radar Observations of Asteroid 288 Glauke" (PDF). NASA JPL. Retrieved 12 October 2011.


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