(4925) Zhoushan Main-belt Asteroid
Discovered on 3 December 1981 by Purple Mountain Observatory at Nanking.
Zhoushan, situated on the East China Sea, is the sole city in the Zhoushan Islands archipelago. An important fishing and shipping port, Zhoushan is also a famous Buddhism and tourist resort.Naming citation (20090806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Zhoushan is today
Seen from above the solar system on 2026-10-14: Zhoushan is 3.80 au from the Sun and 4.80 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4925 |
| Provisional designation | 1981 XH2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.4 km (#3,280 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.194 |
| Rotation period | 7.87 hours |
| Absolute magnitude (H) | 11.98 |
| Orbital period | 5.30 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.28 – 3.80 au |
| Eccentricity | 0.251 |
| Inclination | 8.35° |
| Closest distance between its orbit and Earth's (MOID) | 1.29 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.