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Encyclopedia > 288 Glauke


288 Glauke
Discovery
Discoverer Robert Luther
Discovery Date February 20, 1890
Alternate Designations 1955 MO; 1959 GB; 1961 WF
Category Main belt
Orbital Elements
Epoch October 22, 2004 (JD 2453300.5)
Eccentricity (e) 0.211
Semi-Major Axis (a) 412.314 Gm (2.756 AU)
Perihelion (q) 325.456 Gm (2.176 AU)
Aphelion (Q) 499.173 Gm (3.337 AU)
Orbital Period (P) 1671.295 d (4.58 a)
Mean Orbital Speed 17.74 km/s
Inclination (i) 4.330°
Longitude of the
Ascending Node (Ω)		 120.591°
Argument of Perihelion (ω) 83.174°
Mean Anomaly (M) 332.837°
Physical Characteristics
Dimensions 32.2 km
Mass 3.5×1016 kg
Density 2.0 ? g/cm³
Surface Gravity 0.0090 m/s²
Escape Velocity 0.0170 km/s
Rotation Period 50 d 1 (http://www.astrosurf.com/aude-old/map_files/AstVarMAP01-2003.htm)
Spectral Class SK
Absolute Magnitude 9.84
Albedo 0.1973 2 (http://www.psi.edu/pds/archive/astdata/ALBEDOS/albedos.tab)
Mean Surface Temperature ~224 K

288 Glauke is an asteroid discovered by Robert Luther in 1890. It was the last of his asteroid discoveries. It is named after Glauke, a daughter of Creon in Greek mythology.


Glauke has an exceptionally slow rotation period of about 1200 hours (50 days). This makes it the slowest-rotating non-planetary object known in the solar system (both Mercury and Venus rotate more slowly). The rotation is believed to be "tumbling", similar to 4179 Toutatis.

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The Minor Planets
Vulcanoids | Main belt | Groups and Families | Near-Earth objects | Jupiter Trojans
Centaurs | Trans-Neptunians | Damocloids | Comets | Kuiper Belt | Oort Cloud
(For other objects and regions, see: Binary asteroids, Asteroid moons and the Solar system)
(For a complete listing, see: List of asteroids)
 This astronomy article is a stub. You can help Wikipedia by expanding it (http://en.wikipedia.org/w/index.php?title=288_Glauke&action=edit).



  Results from FactBites:
 
Mathilde (minor planet 253) (209 words)
A main-belt asteroid, discovered by Johann Palisa, that was flown past at close range, on Jun. 27, 1997, by the NEAR-Shoemaker probe on its way to Eros.
Not only is Mathilde one of the slowest spinning asteroids (only 1220 Clocus and 288 Glauke have longer rotational periods), but it is also one of the flest objects in the Solar System —; twice as dark as chunk of charcoal — reflecting only 3% of the light that strikes it.
Its surface has a spectroscopic signature the same as that of carbonaceous chondrites, whose typical density is about 2 g/cm
  More results at FactBites »


 
 

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