5259 Epeigeus
| Discovery | |
|---|---|
| Discovered by | C. S. Shoemaker E. M. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 30 January 1989 |
| Designations | |
| (5259) Epeigeus | |
| Pronunciation | /ɪˈpiːdʒiːəs/ |
Named after | Επειγεύς (Greek mythology) |
| 1989 BB1 | |
| Jupiter trojan Greek · background | |
| Adjectives | Epeige(i)an |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 38.18 yr (13,946 d) |
| Aphelion | 5.5824 AU |
| Perihelion | 4.8187 AU |
| 5.2005 AU | |
| Eccentricity | 0.0734 |
| 11.86 yr (4,332 d) | |
| 27.038° | |
| 0° 4m 59.16s / day | |
| Inclination | 15.921° |
| 67.461° | |
| 200.12° | |
| Jupiter MOID | 0.5047 AU |
| TJupiter | 2.9180 |
| Physical characteristics | |
| 42.59±4.4 km 44.42±2.34 km 44.74±1.06 km | |
| 18.42±0.03 h | |
| 0.069±0.008 0.073±0.007 0.0739±0.018 | |
| D (Pan-STARRS) D (SDSS-MOC) | |
| 10.2 10.30 | |
5259 Epeigeus /ɪˈpiːdʒiːəs/ is a mid-sized Jupiter trojan from the Greek camp, approximately 44 kilometers (27 miles) in diameter. It was discovered on 30 January 1989, by American astronomer couple Carolyn and Eugene Shoemaker at the Palomar Observatory in California. The D-type asteroid has a rotation period of 18.4 hours. It was named after the Myrmidon hero Epeigeus from Greek mythology.