(3421) Yangchenning Main-belt Asteroid
Discovered on 26 November 1975 by Purple Mountain Observatory at Nanking.
Where Yangchenning is today
Seen from above the solar system on 2026-10-14: Yangchenning is 2.20 au from the Sun and 3.12 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3421 |
| Provisional designation | 1975 WK1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.95 km (#12,857 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.450 |
| Rotation period | 4.99 hours |
| Absolute magnitude (H) | 13.85 |
| Orbital period | 3.34 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 2.03 – 2.44 au |
| Eccentricity | 0.0927 |
| Inclination | 2.47° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 26 November 1975
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
← (3420) Standish · (3422) Reid →