95 Arethusa
|
A three-dimensional model of 95 Arethusa based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Karl Theodor Robert Luther |
| Discovery date | November 23, 1867 |
| Designations | |
| Main belt | |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 527.303 Gm (3.525 AU) |
| Perihelion | 390.547 Gm (2.611 AU) |
| 458.925 Gm (3.068 AU) | |
| Eccentricity | 0.149 |
| 1962.561 d (5.37 a) | |
Average orbital speed | 16.91 km/s |
| 326.964° | |
| Inclination | 12.998° |
| 243.148° | |
| 155.023° | |
| Physical characteristics | |
| Dimensions |
136.04 km† 147 ± 32 km[1] |
| Mass | 2.6×1018 kg |
Mean density | ? g/cm³ |
| 0.0380 m/s² | |
| 0.0719 km/s | |
| ? d | |
| Albedo | 0.070 [2] |
| Temperature | ~159 K |
Spectral type | C |
| 7.84 | |
|
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95 Arethusa (/ˌærᵻˈθjuːzə/ ARR-ə-THEW-zə) is a large main-belt asteroid. Its coloring is dark, its composition carbonaceous and primitive. It was discovered by Robert Luther on November 23, 1867, and named after one of the various Arethusas in Greek mythology. Arethusa has been observed occulting a star three times: first on February 2, 1998, and twice in January 2003.
References
- ↑ Ďurech, Josef; Kaasalainen, Mikko; Herald, David; Dunham, David; Timerson, Brad; Hanuš, Josef; et al. (2011). "Combining asteroid models derived by lightcurve inversion with asteroidal occultation silhouettes" (PDF). Icarus 214 (2): 652–670. arXiv:1104.4227. Bibcode:2011Icar..214..652D. doi:10.1016/j.icarus.2011.03.016.
- ↑ Asteroid Data Sets
External links
- Orbital simulation from JPL (Java) / Ephemeris
- Asteroid Occultation Results for North America on 2008/04/16 with 2 chords
- 95 Arethusa at the JPL Small-Body Database
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