(23355) Elephenor Jupiter Trojan
Discovered on 17 October 1960 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Elephenor was a king from Euboea. In the last year of the Trojan War he was killed by the Trojan Agenor, as he tried to win the armor of Echepolos.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Elephenor is today
Seen from above the solar system on 2026-10-14: Elephenor is 5.49 au from the Sun and 6.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23355 |
| Provisional designation | 9602 P-L |
| Orbit class | Jupiter Trojan |
| Absolute magnitude (H) | 12.02 |
| Orbital period | 12.0 years |
| Semi-major axis | 5.23 au |
| Perihelion – aphelion | 4.92 – 5.55 au |
| Eccentricity | 0.0594 |
| Inclination | 7.07° |
| Closest distance between its orbit and Earth's (MOID) | 3.94 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 October 1960
- (1813) Imhotep
- (2082) Galahad
- (2319) Aristides
- (2412) Wil
- (2495) Noviomagum
- (3279) Solon
- (3604) Berkhuijsen
- (3734) Waland
- (4355) Memphis
- (4356) Marathon
- (4907) Zoser
- (5012) Eurymedon