137730 1999 XR121
Main-belt minor planet
- Designation
- (137730) 1999 XR121
- Class
- Main-belt
- Semi-major axis
- 2.3065353 AU
- Eccentricity
- 0.1649741
- Inclination
- 3.4202°
- Absolute magnitude (H)
- 16.62
- Perihelion
- 1.926 AU
- Aphelion
- 2.687 AU
Main-belt minor planet