2047 Smetana
| Discovery | |
|---|---|
| Discovered by | L. Kohoutek |
| Discovery site | Bergedorf Obs. |
| Discovery date | 26 October 1971 |
| Designations | |
| (2047) Smetana | |
| Pronunciation | /ˈsmɛtənə/ |
Named after | Bedřich Smetana (Czech composer) |
| 1971 UA1 | |
| main-belt · (inner) · Hungaria | |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 44.77 yr (16,353 days) |
| Aphelion | 1.8783 AU |
| Perihelion | 1.8658 AU |
| 1.8720 AU | |
| Eccentricity | 0.0033 |
| 2.56 yr (936 days) | |
| 16.211° | |
| 0° 23m 5.28s / day | |
| Inclination | 25.281° |
| 36.611° | |
| 307.99° | |
| Known satellites | 1 |
| Physical characteristics | |
| Dimensions | 3.131±0.153 km 3.85 km (calculated) |
| 2.4801±0.0005 h 2.4969±0.0004 h 2.4970±0.0003 h 2.498±0.001 h | |
| 0.3 (assumed) 0.544±0.069 | |
| E | |
| 13.80 · 14.0 · 14.25±0.05 | |
2047 Smetana, provisional designation 1971 UA1, is a bright Hungaria asteroid and synchronous binary system from the innermost regions of the asteroid belt, approximately 3.5 kilometers in diameter. It was discovered on 26 October 1971, by Czech astronomer Luboš Kohoutek at Bergedorf Observatory in Hamburg, Germany. The asteroid was named after Czech composer Bedřich Smetana. Its sub-kilometer sized minor-planet moon was discovered in 2012.