(300854) Changyuin Main-belt Asteroid
Discovered on 28 December 2007 by Q.-z. Ye C.-S. Lin at Lulin.
Changyuin (1896–1958) was a Chinese astronomer, who established the first educational observatory at Sun Yat-Sen University in China in 1929. He discovered the variable star XX Cam in 1947.Naming citation (WGSBN Bull. 1, #3, 13), IAU / Minor Planet Center, via NASA/JPL
Where Changyuin is today
Seen from above the solar system on 2026-10-14: Changyuin is 3.23 au from the Sun and 3.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 300854 |
| Provisional designation | 2007 YV31 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.76 |
| Orbital period | 5.55 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 3.00 – 3.26 au |
| Eccentricity | 0.0417 |
| Inclination | 7.95° |
| Closest distance between its orbit and Earth's (MOID) | 2.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.