(382238) Euphemus ( lat. Euphemus ) - Jupiter's Trojan asteroid moving at the Lagrange point L 5 , 60 ° behind the planet. The asteroid was discovered on July 8, 2011 by the American astronomer L. Elenin at the Mayhill Observatory and named after one of the characters in ancient Greek mythology .
| (382238) Euphemus | |
|---|---|
| Asteroid | |
| Opening | |
| Discoverer | L. elenin |
| Place of discovery | Mayhill |
| Discovery date | July 8, 2011 |
| Alternative notation | 2012 SN 9 |
| Category | Jupiter Trojans ( L 5 ) |
| Orbital characteristics | |
| Age of December 9, 2014 JD 2457000.5 | |
| Eccentricity ( e ) | 0,0707978 |
| Semimajor axis ( a ) | 766.937 million km (5.1266544 AU ) |
| Perihelion ( q ) | 712.639 million km (4.7636985 AU) |
| Aphelion ( Q ) | 821.234 million km (5,4896103 AU) |
| Circulation Period ( P ) | 4239.84 days (11.608 g. ) |
| Average orbital speed | 13,138 km / s |
| Inclination ( i ) | 12.44169 ° |
| Longitude node (Ω) | 306.76199 ° |
| Perihelion Argument (ω) | 29.77310 ° |
| Median Anomaly ( M ) | 82.41167 ° |
| physical characteristics | |
| Diameter | 6 - 12 km |
| Apparent magnitude | 21.51 m (current) |
| Absolute magnitude | 13.4 m |
| Current distance from the sun | 5,388 a. e. |
| Current distance from earth | 5.896 a. e. |
Orbit of the asteroid Euphem and his position in the solar system
See also
- Asteroid List
- Classifications of Minor Planets
- List of Trojan asteroids ("Greeks")
- List of Trojan asteroids (“Trojans”)