(13229) Echion
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Asteroid (13229) Echion |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Jupiter Trojan (L 4 ) |
| Major semi-axis | 5.2391 AU |
| eccentricity | 0.0752 |
| Perihelion - aphelion | 4.8414 AU - 5.6368 AU |
| Inclination of the orbit plane | 3.8418 ° |
| Length of the ascending node | 343.0581 ° |
| Argument of the periapsis | 166.1809 ° |
| Sidereal period | 11.99 a |
| Mean orbital velocity | 13.03 km / s |
| Physical Properties | |
| Absolute brightness | 11.6 mag |
| history | |
| Explorer | Jana Tichá , Miloš Tichý |
| Date of discovery | November 2, 1997 |
| Another name | 1997 VB 1 , 1978 EG 9 |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(13229) Echion is an asteroid belonging to the group of Jupiter Trojans . This describes asteroids that orbit the sun on the Lagrange points on the orbit of the planet Jupiter . It is assigned to the Lagrange point L 4 , that is (13229) Echion is ahead of Jupiter by 60 ° in its orbit around the sun.
The asteroid was discovered on November 2, 1997 by the Czech astronomer couple Jana Tichá and Miloš Tichý at the Kleť Observatory ( IAU code 046) near Český Krumlov . Unconfirmed sightings of (13229) Echion had already occurred in March 1978 (1978 EG 9 ) at the Palomar Observatory in California .
(13229) Echion was named after Echion . Echion was one of the Greeks who hid in the Trojan Horse during the Trojan War . He was killed when he jumped out. It was named on May 23, 2000. Trojans running ahead are named after Greek heroes. The Echion Linea, on the other hand, a more than 1000 km long furrow ( Linea ) on Jupiter's moon Europa , was named in 1985 after the Echion division .
Web links
- (13229) Echion in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (13229) Echion in the Small-Body Database of the Jet Propulsion Laboratory (English).
Individual evidence
- ↑ (13229) Echion at the IAU Minor Planet Center (English)
- ↑ Entry of the asteroid on the website of the Kleť Observatory (English)
- ^ The Echion Linea in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS