2148 Epeios
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Discovery[1] and designation
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| Discovered by | Richard Martin West |
| Discovery date | October 24, 1976 |
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Designations
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| Alternative names[1] | 1976 UW |
| Minor planet category |
Jupiter Trojan |
| Epoch February 04, 2008 (JD 2454500.5) | |
| Aphelion | 823.679 Gm (5.506 AU) |
| Perihelion | 733.664 Gm (4.904 AU) |
| Semi-major axis | 778.671 Gm (5.205 AU) |
| Eccentricity | 0.058 |
| Orbital period | 4337.522 d (11.88 a) |
| Average orbital speed | 13.04 km/s |
| Mean anomaly | 297.210° |
| Inclination | 9.154° |
| Longitude of ascending node | 176.593° |
| Dimensions | ? km |
| Mass | ?×10? kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | ? m/s² |
| Equatorial escape velocity | ? km/s |
| Sidereal rotation period |
? d |
| Axial tilt | ?° |
| Pole ecliptic latitude | ? |
| Pole ecliptic longitude | ? |
| Geometric albedo | 0.10 |
| Temperature | ~122 K |
| Spectral type | ? |
| Absolute magnitude | 11.1 |
2148 Epeios is a Jupiter trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Epeius, who was a soldier during the Trojan War. It was discovered by Richard Martin West on October 24, 1976 at the La Silla Observatory in Chile. 2146 Stentor was also discovered the same day by West.
[edit] External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
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