18289 Yokoyamakoichi
Main-belt minor planet
- Designation
- (18289) Yokoyamakoichi
- Class
- Main-belt
- Semi-major axis
- 2.8107139 AU
- Eccentricity
- 0.1816858
- Inclination
- 12.19121°
- Absolute magnitude (H)
- 13.91
- Perihelion
- 2.300 AU
- Aphelion
- 3.321 AU
Main-belt minor planet