(168) Sibylla
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Asteroid (168) Sibylla |
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| Properties of the orbit ( animation ) | |
| Orbit type | Outer main belt |
| Major semi-axis | 3,377 AU |
| eccentricity | 0.069 |
| Perihelion - aphelion | 3.145 AU - 3.609 AU |
| Inclination of the orbit plane | 4.6 ° |
| Length of the ascending node | 206.4 ° |
| Argument of the periapsis | 168.6 ° |
| Time of passage of the perihelion | July 14, 2013 |
| Sidereal period | 6 a 75 d |
| Mean orbital velocity | 16.2 km / s |
| Physical Properties | |
| Medium diameter | 148 km |
| Albedo | 0.0535 |
| Rotation period | 47 h 1 min |
| Absolute brightness | 7.94 mag |
| Spectral class | C. |
| history | |
| Explorer | JC Watson |
| Date of discovery | September 28, 1876 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(168) Sibylla is an asteroid which - like Cybele - orbits on the outer edge of the main belt in the so-called Hecuba gap.
The low albedo indicates that it contains a high proportion of carbonates .
The asteroid was discovered by James Craig Watson in Ann Arbor on September 28, 1876 and named after Sibylle , a seer from Greek mythology .