81 Terpsichore
| Discovery | |
|---|---|
| Discovered by | Ernst Wilhelm Tempel |
| Discovery date | September 30, 1864 |
| Designations | |
Named after | Terpsichore |
| 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) | |
Average orbital speed | 17.43 km/s |
| 149.581° | |
| Inclination | 7.809° |
| 1.497° | |
| 50.234° | |
| Physical characteristics | |
| Dimensions | 121.77 ± 2.34 km[1] |
| Mass | (6.19 ± 5.31) × 1018 kg[1] |
Mean density | 6.54 ± 5.62[1] g/cm3 |
| 0.0333 m/s² | |
| 0.0630 km/s | |
| ? d | |
| Albedo | 0.051 [2] |
| Temperature | ~165 (C?) |
Spectral type | C |
| 8.48 | |
|
| |
81 Terpsichore (/tərpˈsɪkəriː/ 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
- 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ Asteroid Data Sets
External links
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