83982 Crantor
83982 Crantor (provisional designation 2002 GO9) is a centaur in a 1:1 resonance with Uranus, approximately 60 kilometers (37 miles) in diameter. It was discovered on 12 April 2002, by astronomers of the Near-Earth Asteroid Tracking at the Palomar Observatory in California, United States. This minor planet was named for Crantor from Greek mythology.
| Discovery | |
|---|---|
| Discovered by | NEAT |
| Discovery site | Palomar Obs. |
| Discovery date | 12 April 2002 |
| Designations | |
MPC designation | (83982) Crantor |
| Pronunciation | /ˈkræntɔːr/ |
Named after | Crantor (Greek mythology) |
Alternative designations | 2002 GO9 |
Minor planet category | Uranus co-orbital centaur · distant |
| Symbol | (astrological) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 3 | |
| Observation arc | 13.37 yr (4,882 days) |
| Aphelion | 24.862 AU |
| Perihelion | 14.047 AU |
Semi-major axis | 19.454 AU |
| Eccentricity | 0.2780 |
Orbital period (sidereal) | 85.81 yr (31,342 days) |
Mean anomaly | 63.889° |
Mean motion | 0° 0m 41.4s / day |
| Inclination | 12.770° |
Longitude of ascending node | 117.40° |
| 93.203° | |
| Physical characteristics | |
Mean diameter | 59±12 km |
Synodic rotation period | 13.94 h |
| 0.121±0.064 | |
| RR B–V = 1.105±0.042 V–R = 0.761±0.039 | |
| 8.26 · 8.693±0.057 (R) · 8.8 · 9.03±0.16 · 9.17 | |
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