(2197) Shanghai Main-belt Asteroid
Discovered on 30 December 1965 by Purple Mountain Observatory at Nanking.
Named for the largest city in China, one of the best known ports in the world, located at the mouth of the Yangtze River.Naming citation (MPC 6059), IAU / Minor Planet Center, via NASA/JPL
Where Shanghai is today
Seen from above the solar system on 2026-10-14: Shanghai is 3.07 au from the Sun and 2.16 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2197 |
| Provisional designation | 1965 YN |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.2 km (#2,180 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.119 |
| Rotation period | 5.96 hours |
| Absolute magnitude (H) | 11.65 |
| Orbital period | 5.58 years |
| Semi-major axis | 3.15 au |
| Perihelion – aphelion | 2.74 – 3.56 au |
| Eccentricity | 0.131 |
| Inclination | 2.49° |
| Closest distance between its orbit and Earth's (MOID) | 1.75 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.