(8311) Zhangdaning Main-belt Asteroid
Discovered on 3 October 1996 by Beijing Schmidt CCD Asteroid Program at Xinglong.
Named for Daning Zhang (b. 1944), physician and vice-president of Tianjin Traditional Chinese Medicine (TCM) Hospital, professor of Tianjin Medical University, guest professor of Taiwan Chinese Academic College, chairman of the International TCM Kidney Diseases Conference. As the founder of the kidney diseases practice of TCM, he has won many international awards. He has written more than 60 publications on kidney disease.Naming citation (19980808/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Zhangdaning is today
Seen from above the solar system on 2026-10-14: Zhangdaning is 2.12 au from the Sun and 3.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8311 |
| Provisional designation | 1996 TV1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.68 km (#15,911 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.357 |
| Absolute magnitude (H) | 14.98 |
| Orbital period | 3.50 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 2.12 – 2.49 au |
| Eccentricity | 0.0796 |
| Inclination | 3.98° |
| Closest distance between its orbit and Earth's (MOID) | 1.11 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.