(65) Cybele
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Asteroid (65) Cybele |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid , Cybele group |
| Major semi-axis | 3.43 AU |
| eccentricity | 0.109 |
| Perihelion - aphelion | 3.057 AU - 3.803 AU |
| Inclination of the orbit plane | 3.6 ° |
| Length of the ascending node | 155.7 ° |
| Argument of the periapsis | 103.2 ° |
| Time of passage of the perihelion | January 22, 2021 |
| Sidereal period | 6 a 129 d |
| Mean orbital velocity | 16.0 km / s |
| Physical Properties | |
| Medium diameter | 237 km |
| Albedo | 0.07 |
| Absolute brightness | 6.6 likes |
| Spectral class | P |
| history | |
| Explorer | EWL temple |
| Date of discovery | March 8, 1861 |
| 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. | |
(65) Cybele is an asteroid of the main belt , which on 6 March 1861 by the German astronomer Wilhelm Tempel discovered. Tempel called him Maximiliana.
The asteroid was named after Cybele , who in Greek mythology represents a mother of gods.
During an occultation of the star AGK3 +19 599 by Cybele in 1979, there was evidence of an 11 km large companion orbiting Cybele 917 km from its center (if the occultation was central). During this occultation, the circumference of 23 km previously determined by the IRAS satellite could also be confirmed.
Cybele group
(65) Cybele is the namesake of a group of asteroids that move beyond the Hecuba Gap with orbital axes between 3.27 and 3.7 AU. The objects have eccentricities of less than 0.3 and orbital inclinations of less than 25 °. The members of this group are in 7: 4 resonance with Jupiter, which stabilizes their orbit.
See also
Web links
- International Astronomical Union Circular No. 3439 Notes on a Companion Cybeles. (English)