(343158) Marsyas Apollo
Discovered on 29 April 2009 by CSS at Catalina.
Marsyas, a Phrygian Satyr dared oppose Apollo in a musical duel. Marsyas lost when he could not play his flute upside-down. For his hubris he was tied to a tree, flayed, his blood turned into a stream. Marsyas is so named for its unusual retrograde orbit, that which opposes the motion of most solar system objects, Apollos included.Naming citation (WGSBN Bull. 1, #1, 26), IAU / Minor Planet Center, via NASA/JPL
Where Marsyas is today
Seen from above the solar system on 2026-10-14: Marsyas is 4.55 au from the Sun and 5.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 343158 |
| Provisional designation | 2009 HC82 |
| Orbit class | Apollo · near-Earth |
| Absolute magnitude (H) | 16.31 |
| Orbital period | 4.02 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 0.488 – 4.57 au |
| Eccentricity | 0.807 |
| Inclination | 154° |
| Closest distance between its orbit and Earth's (MOID) | 0.148 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.