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Discovery
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| Discovered by | Karl Wilhelm Reinmuth |
| Discovery date | September 22, 1928 |
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Designations
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| Named after | Clematis |
| Alternate name(s) | 1928 SJ |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 520.906 Gm (3.482 AU) |
| Perihelion | 445.895 Gm (2.981 AU) |
| Semi-major axis | 483.400 Gm (3.231 AU) |
| Eccentricity | 0.078 |
| Orbital period | 2121.635 d (5.81 a) |
| Average orbital speed | 16.54 km/s |
| Mean anomaly | 205.381° |
| Inclination | 21.393° |
| Longitude of ascending node | 202.156° |
| Argument of perihelion | 111.371° |
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Physical characteristics
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| Dimensions | 37.9 km |
| Mass | 5.7×1016 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0106 m/s² |
| Escape velocity | 0.0200 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~155 K |
| Spectral type | ? |
| Absolute magnitude (H) | 10.1 |
1101 Clematis is a minor planet orbiting the Sun. Initially it received the designation 1928 SJ. It was named for the clematis flower.
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