(21357) Davidying Main-belt Asteroid
Discovered on 31 March 1997 by LINEAR at Socorro.
David Qianli Ying (b. 1988) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his botany project. He attends the Coral Reef Senior High School, Miami, Florida.Naming citation (20050224/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Davidying is today
Seen from above the solar system on 2026-10-14: Davidying is 2.87 au from the Sun and 3.85 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21357 |
| Provisional designation | 1997 FJ4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.34 km (#14,362 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.301 |
| Absolute magnitude (H) | 14.66 |
| Orbital period | 4.88 years |
| Semi-major axis | 2.88 au |
| Perihelion – aphelion | 2.86 – 2.89 au |
| Eccentricity | 0.00572 |
| Inclination | 1.14° |
| Closest distance between its orbit and Earth's (MOID) | 1.84 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called David
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