491161 2011 ST221
Main-belt minor planet
- Designation
- (491161) 2011 ST221
- Class
- Main-belt
- Semi-major axis
- 2.2590367 AU
- Eccentricity
- 0.1664369
- Inclination
- 6.0823°
- Absolute magnitude (H)
- 18.09
- Perihelion
- 1.883 AU
- Aphelion
- 2.635 AU
Main-belt minor planet