(3221) Changshi Main-belt Asteroid
Discovered on 2 December 1981 by Purple Mountain Observatory at Nanking.
Where Changshi is today
Seen from above the solar system on 2026-10-14: Changshi is 1.86 au from the Sun and 1.78 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3221 |
| Provisional designation | 1981 XF2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.00 km (#8,931 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.373 |
| Rotation period | 2.71 hours |
| Absolute magnitude (H) | 13.03 |
| Orbital period | 3.27 years |
| Semi-major axis | 2.20 au |
| Perihelion – aphelion | 1.86 – 2.54 au |
| Eccentricity | 0.154 |
| Inclination | 3.65° |
| Closest distance between its orbit and Earth's (MOID) | 0.851 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 2 December 1981
More named asteroids discovered by Purple Mountain Observatory
- (1125) China
- (1802) Zhang Heng
- (1888) Zu Chong-Zhi
- (1972) Yi Xing
- (2012) Guo Shou-Jing
- (2027) Shen Guo
- (2045) Peking
- (2077) Kiangsu
- (2078) Nanking
- (2085) Henan
- (2162) Anhui
- (2169) Taiwan
← (3220) Murayama · (3222) Liller →