Asteroid
Near-Earth
Marsyas
343158 Marsyas (2009 HC82)
Where is it now
- Distance from Sun
- 4.512 AU
- True anomaly
- 175.69°
- As of
- 29 August 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
Orbital elements
- Semi-major axis
- 2.527 AU
- Eccentricity
- 0.8068
- Inclination
- 154.35°
- Orbital period
- 4.02 years
- Perihelion
- 0.488 AU
- Aphelion
- 4.565 AU
- Longitude of ascending node
- 295.5°
- Argument of periapsis
- 298.99°
- Epoch · J2000
- 2461200.5
Visual & observation
- Absolute magnitude (H)
- 16.31
- Spectral type
- APO
Discovery & classification
Near-Earth Object
Named