(133) Cyrene
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Asteroid (133) Cyrene |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.062 AU |
| eccentricity | 0.14 |
| Perihelion - aphelion | 2.635 AU - 3.489 AU |
| Inclination of the orbit plane | 7.2 ° |
| Length of the ascending node | 319.1 ° |
| Argument of the periapsis | 290.6 ° |
| Time of passage of the perihelion | November 21, 2011 |
| Sidereal period | 5 a 131 d |
| Mean orbital velocity | 16.9 km / s |
| Physical Properties | |
| Medium diameter | 67 km |
| Albedo | 0.2563 |
| Rotation period | 12 h 42 min |
| Absolute brightness | 7.98 likes |
| history | |
| Explorer | JC Watson |
| Date of discovery | August 16, 1873 |
| Another name | 1936 HO ; 1948 QC; 1959 UR; A910 NB |
| 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. | |
(133) Cyrene is an asteroid of the main outer asteroid belt discovered by James Craig Watson on August 16, 1873 .
The heavenly body was named after Cyrene , a female figure from Greek mythology who was kidnapped by Apollo and transformed into a nymph .
Cyrene ranges from 2.629 ( perihelion ) astronomical units to 3.491 astronomical units ( aphelion ) in 5.35 years around the sun . The orbit is inclined 7.227 ° to the ecliptic , the orbit eccentricity is 0.141.
Cyrene has a diameter of 67 km. It has a light, silicate-containing surface with an albedo of 0.256. It rotates around its own axis in around 12 hours and 42 minutes.