627 Charis
627 Charis /ˈkeɪrɪs/ is an asteroid and the parent body of the Charis family, located in the outer regions of the asteroid belt, approximately 49 kilometers in diameter. It was discovered on 4 March 1907, by German astronomer August Kopff at the Heidelberg-Königstuhl State Observatory in southwest Germany. The asteroid was named after the Greek goddess Charis, a name which may have been inspired by the asteroid's provisional designation 1907 XS. ('Charis' is in Greek is spelled 'Χάρις'.)
| Discovery | |
|---|---|
| Discovered by | A. Kopff |
| Discovery site | Heidelberg Obs. |
| Discovery date | 4 March 1907 |
| Designations | |
MPC designation | (627) Charis |
| Pronunciation | /ˈkeɪrɪs/ |
Named after | Charis (Greek mythology) |
Alternative designations | 1907 XS · 1929 RJ1 1929 RN1 · 1932 CZ 1947 GK · 1966 DR A917 DE |
Minor planet category | main-belt · (outer) Charis |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 110.65 yr (40,415 days) |
| Aphelion | 3.0675 AU |
| Perihelion | 2.7320 AU |
Semi-major axis | 2.8998 AU |
| Eccentricity | 0.0578 |
Orbital period (sidereal) | 4.94 yr (1,804 days) |
Mean anomaly | 318.92° |
Mean motion | 0° 11m 58.56s / day |
| Inclination | 6.4732° |
Longitude of ascending node | 142.48° |
| 176.72° | |
| Physical characteristics | |
| Dimensions | 38.018±0.146 km 44.745±0.140 km 48.51±2.6 km 49.47±0.51 km 62.68±0.41 km |
Synodic rotation period | >24 h (dated) 27.888±0.002 h |
| 0.047±0.007 0.0786±0.009 0.080±0.002 0.0925±0.0225 | |
| Tholen = XB: SMASS = X · P B–V = 0.680 U–B = 0.261 | |
| 9.44±0.85 · 9.95 | |
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