(116) Sirona
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Asteroid (116) Sirona |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.767 AU |
| eccentricity | 0.141 |
| Perihelion - aphelion | 2.378 AU - 3.156 AU |
| Inclination of the orbit plane | 3.6 ° |
| Length of the ascending node | 63.8 ° |
| Argument of the periapsis | 94.8 ° |
| Time of passage of the perihelion | November 18, 2011 |
| Sidereal period | 4 a 220 d |
| Mean orbital velocity | 17.8 km / s |
| Physical Properties | |
| Medium diameter | 72 km |
| Albedo | 0.2560 |
| Rotation period | 12 h 2 min |
| Absolute brightness | 7.82 likes |
| Spectral class | S. |
| history | |
| Explorer | CHF Peters |
| Date of discovery | September 8, 1871 |
| 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. | |
The asteroid (116) Sirona was discovered on September 8, 1871 by the German-American astronomer CHF Peters .
It was named after Sirona , the Celtic goddess of fertility, sources and stars.