| Discovery | |
|---|---|
| Discovered by | James Craig Watson |
| Discovery date | September 13, 1868 |
| Designations | |
| Alternate name | |
| Minor planet category | Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 544.012 Gm (3.636 AU) |
| Perihelion | 399.428 Gm (2.670 AU) |
| Semi-major axis | 471.720 Gm (3.153 AU) |
| Eccentricity | 0.153 |
| Orbital period | 2045.203 d (5.60 a) |
| Average orbital speed | 16.67 km/s |
| Mean anomaly | 205.812° |
| Inclination | 2.791° |
| Longitude of ascending node | 41.854° |
| Argument of perihelion | 31.043° |
| Physical characteristics | |
| Dimensions | 123.7 km |
| Mass | 2.0 × 1018 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0346 m/s² |
| Escape velocity | 0.0654 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~157 K |
| Spectral type | C |
| Absolute magnitude (H) | 8.27 |
| | |
104 Klymene is a large, dark main belt asteroid. It has probably a carbonaceous composition. Klymene is a member of the extensive Themis asteroid family. It was discovered by J. C. Watson on September 13, 1868 and named after one of the many Clymenes in Greek mythology.[1]
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