(29509) Kuangtingyun Main-belt Asteroid
Discovered on 17 December 1997 by Beijing Schmidt CCD Asteroid Program at Xinglong.
Kuang Tingyun (b. 1934) is a leading Chinese plant physiologist and an Academician of the Chinese Academy of Sciences. She is one of the major founders of the field of photosynthetic membrane biology in China, and has made significant contributions to the establishment and development of photosynthetic membrane proteins research in China.Naming citation (WGSBN Bull. 5, #28, 11), IAU / Minor Planet Center, via NASA/JPL
Where Kuangtingyun is today
Seen from above the solar system on 2026-10-14: Kuangtingyun is 3.03 au from the Sun and 3.81 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 29509 |
| Provisional designation | 1997 YK1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.71 km (#9,379 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.163 |
| Absolute magnitude (H) | 14.02 |
| Orbital period | 5.19 years |
| Semi-major axis | 3.00 au |
| Perihelion – aphelion | 2.71 – 3.28 au |
| Eccentricity | 0.0948 |
| Inclination | 8.45° |
| Closest distance between its orbit and Earth's (MOID) | 1.72 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.