52975 Cyllarus
52975 Cyllarus /ˈsɪlərəs/ (provisional designation 1998 TF35) is a very red centaur, approximately 62 kilometers (39 miles) in diameter, orbiting the Sun in the outer Solar System. It was discovered on 12 October 1998, by American astronomer Nichole Danzl at the Kitt Peak National Observatory near Sells, Arizona, in the United States. It was later named after the mythological centaur Cyllarus.
Hubble Space Telescope image of Cyllarus taken in 2010 | |
| Discovery | |
|---|---|
| Discovered by | N. Danzl |
| Discovery site | Kitt Peak National Obs. |
| Discovery date | 12 October 1998 |
| Designations | |
MPC designation | (52975) Cyllarus |
| Pronunciation | /ˈsɪlərəs/ |
Named after | Cyllarus (Greek mythology) |
Alternative designations | 1998 TF35 |
Minor planet category | centaur · distant |
| Symbol | (astrological) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 9.95 yr (3,636 days) |
| Aphelion | 35.971 AU |
| Perihelion | 16.254 AU |
Semi-major axis | 26.113 AU |
| Eccentricity | 0.3775 |
Orbital period (sidereal) | 133.44 yr (48,739 days) |
Mean anomaly | 75.673° |
Mean motion | 0° 0m 26.64s / day |
| Inclination | 12.651° |
Longitude of ascending node | 52.073° |
| 300.77° | |
| TJupiter | 4.2470 |
| Physical characteristics | |
| Dimensions | 62 km |
| 0.115 | |
| RR B–V = 1.096±0.095 V–R = 0.680±0.085 | |
| 23.93 | |
| 9.4 | |
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