137731 1999 XW121
Main-belt minor planet
- Designation
- (137731) 1999 XW121
- Class
- Main-belt
- Semi-major axis
- 2.3041832 AU
- Eccentricity
- 0.1522134
- Inclination
- 5.48295°
- Absolute magnitude (H)
- 16.33
- Perihelion
- 1.953 AU
- Aphelion
- 2.655 AU
Main-belt minor planet