2148 Epeios
| Discovery | |
|---|---|
| Discovered by | R. M. West |
| Discovery site | La Silla Obs. |
| Discovery date | 24 October 1976 |
| Designations | |
| (2148) Epeios | |
| Pronunciation | /ɪˈpiːɒs, -əs/ |
Named after | Epeius (Greek mythology) |
| 1976 UW | |
| Jupiter trojan Greek · background | |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 40.69 yr (14,862 d) |
| Aphelion | 5.5118 AU |
| Perihelion | 4.9188 AU |
| 5.2153 AU | |
| Eccentricity | 0.0569 |
| 11.91 yr (4,350 d) | |
| 243.53° | |
| 0° 4m 58.08s / day | |
| Inclination | 9.1481° |
| 176.56° | |
| 231.58° | |
| Jupiter MOID | 0.0308 AU |
| TJupiter | 2.9710 |
| Physical characteristics | |
| 37.98±0.32 km | |
| 0.064±0.003 | |
| 10.8 | |
2148 Epeios /ɪˈpiːɒs/ is a mid-sized Jupiter trojan from the Greek camp, approximately 38 kilometers (24 miles) in diameter. It was discovered on 24 October 1976, by Danish astronomer Richard Martin West at ESO's La Silla Observatory in northern Chile. The dark Jovian asteroid is the principal body of the proposed Epeios family and was named after Epeius from Greek mythology.