(617) Patroclus Jupiter Trojan
Discovered on 17 October 1906 by A. Kopff at Heidelberg.
Where Patroclus is today
Seen from above the solar system on 2026-10-14: Patroclus is 5.04 au from the Sun and 4.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 617 |
| Provisional designation | A906 UL |
| Orbit class | Jupiter Trojan |
| Diameter | 140 km (#100 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0470 |
| Rotation period | 103 hours |
| Spectral type | P |
| Absolute magnitude (H) | 8.22 |
| Orbital period | 11.9 years |
| Semi-major axis | 5.21 au |
| Perihelion – aphelion | 4.48 – 5.93 au |
| Eccentricity | 0.139 |
| Inclination | 22.1° |
| Closest distance between its orbit and Earth's (MOID) | 3.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 October 1906
More named asteroids discovered by A. Kopff
- (579) Sidonia
- (582) Olympia
- (584) Semiramis
- (585) Bilkis
- (589) Croatia
- (591) Irmgard
- (593) Titania
- (595) Polyxena
- (596) Scheila
- (606) Brangane
- (607) Jenny
- (608) Adolfine
← (616) Elly · (618) Elfriede →