81 Terpsichore

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81 Terpsichore
Discovery
Discovered by Ernst Wilhelm Tempel
Discovery date September 30, 1864
Designations
Named after
Terpsichore
 
Minor planet category Main belt
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 516.955 Gm (3.456 AU)
Perihelion 337.132 Gm (2.254 AU)
427.044 Gm (2.855 AU)
Eccentricity 0.211
1761.647 d (4.82 a)
17.43 km/s
149.581°
Inclination 7.809°
1.497°
50.234°
Physical characteristics
Dimensions 121.77 ± 2.34[1] km
Mass (6.19 ± 5.31) × 1018[1] kg
Mean density
6.54 ± 5.62[1] g/cm3
0.0333 m/s²
0.0630 km/s
? d
Albedo 0.051 [2]
Temperature ~165 K
Spectral type
C
8.48

81 Terpsichore (/tərpˈsɪkər/ tərp-SIK-ə-ree) is a large and very dark main-belt asteroid. It has most probably a very primitive carbonaceous composition. It was found by the prolific comet discoverer Ernst Tempel on September 30, 1864. It is named after Terpsichore, the Muse of dance in Greek mythology.

References[edit]

  1. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  2. ^ Asteroid Data Sets