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106 Dione
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Discovery
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| Discovered by | James Craig Watson |
| Discovery date | October 10, 1868 |
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Designations
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| Named after | Dione |
| Alternate name(s) | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 556.376 Gm (3.719 AU) |
| Perihelion | 391.585 Gm (2.618 AU) |
| Semi-major axis | 473.981 Gm (3.168 AU) |
| Eccentricity | 0.174 |
| Orbital period | 2059.923 d (5.64 a) |
| Average orbital speed | 16.61 km/s |
| Mean anomaly | 161.899° |
| Inclination | 4.616° |
| Longitude of ascending node | 62.400° |
| Argument of perihelion | 329.534° |
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Physical characteristics
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| Dimensions | 146.6 km |
| Mass | 3.3×1018 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0410 m/s² |
| Escape velocity | 0.0775 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~156 K |
| Spectral type | G |
| Absolute magnitude (H) | 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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This article about a C-type asteroid native to the main belt is a stub. You can help Wikipedia by expanding it. |
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