(11887) Echemmon Jupiter Trojan
Discovered on 14 October 1990 by Borngen, F., Schmadel, L. D. at Tautenburg.
The hero Echemmon, son of the king of Troy Priamos, was killed together with his brother Chromios by Diomedes, king of Argos. The name was suggested by the first discoverer.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Echemmon is today
Seen from above the solar system on 2026-10-14: Echemmon is 5.08 au from the Sun and 4.61 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11887 |
| Provisional designation | 1990 TV12 |
| Orbit class | Jupiter Trojan |
| Diameter | 31.2 km (#1,312 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0950 |
| Rotation period | 8.47 hours |
| Absolute magnitude (H) | 10.86 |
| Orbital period | 11.8 years |
| Semi-major axis | 5.18 au |
| Perihelion – aphelion | 4.70 – 5.66 au |
| Eccentricity | 0.0923 |
| Inclination | 24.1° |
| Closest distance between its orbit and Earth's (MOID) | 3.78 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Troy
All asteroids named after someone called Troy
Also discovered on 14 October 1990
- (5622) Percyjulian
- (5647) Sarojininaidu
- (6447) Terrycole
- (6718) Beiglbock
- (7701) Zrzavy
- (7820) Ianlyon
- (8019) Karachkina
- (8020) Erzgebirge
- (8502) Bauhaus
- (8661) Ratzinger
- (10320) Reiland
- (13055) Kreppein
More named asteroids discovered by Borngen, F., Schmadel, L. D.
- (5689) Rhon
- (6068) Brandenburg
- (6209) Schwaben
- (6717) Antal
- (6864) Starkenburg
- (7127) Stifter
- (7580) Schwabhausen
- (7700) Rote Kapelle
- (7945) Kreisau
- (8020) Erzgebirge
- (8171) Stauffenberg
- (8502) Bauhaus
← (11886) Kraske · (11895) Dehant →