(207931) Weihai Main-belt Asteroid
Discovered on 24 December 2008 by Shandong University at Weihai.
Weihai is a well-known harbor and tourist city, as well as the location of the Shandong University, at the eastern tip of Shandong peninsula. It is the first national environmental city in China.Naming citation (20090806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Weihai is today
Seen from above the solar system on 2026-10-14: Weihai is 2.68 au from the Sun and 3.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 207931 |
| Provisional designation | 2008 YM9 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 1.00 hours |
| Absolute magnitude (H) | 16.41 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.48 – 2.71 au |
| Eccentricity | 0.0441 |
| Inclination | 2.61° |
| Closest distance between its orbit and Earth's (MOID) | 1.47 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.