106 Dione
 |
| Discovery | |
|---|---|
| Discovered by | James Craig Watson |
| Discovery date | October 10, 1868 |
| Designations | |
Named after | Dione |
| Main belt | |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 556.376 Gm (3.719 AU) |
| Perihelion | 391.585 Gm (2.618 AU) |
| 473.981 Gm (3.168 AU) | |
| Eccentricity | 0.174 |
| 2059.923 d (5.64 a) | |
Average orbital speed | 16.61 km/s |
| 161.899° | |
| Inclination | 4.616° |
| 62.400° | |
| 329.534° | |
| Physical characteristics | |
| Dimensions | 146.6 km |
| Mass | 3.3×1018 kg |
Mean density | ? g/cm³ |
| 0.0410 m/s² | |
| 0.0775 km/s | |
| ? d | |
| Albedo | ? |
| Temperature | ~156 K |
Spectral type | G |
| 7.41 | |
106 Dione is a large main-belt asteroid. It probably has a composition similar to 1 Ceres. It was discovered by J. C. Watson on October 10, 1868, and named after Dione, a Titaness in Greek mythology who was sometimes said to have been the mother of Aphrodite, the Greek goddess of love and beauty. Dione occulted a dim star on January 19, 1983. A diameter of 147 km was observed, closely matching the value acquired by the IRAS satellite.
One of Saturn's satellites is also named Dione.
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