(15889) Xiaoyuhe Main-belt Asteroid
Discovered on 31 March 1997 by LINEAR at Socorro.
Xiaoyu He (b. 1994) is a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors, for his mathematics project. He attends the Acton-Boxborough Regional High School, Acton, Massachusetts.Naming citation (20120506/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Xiaoyuhe is today
Seen from above the solar system on 2026-10-14: Xiaoyuhe is 2.16 au from the Sun and 2.18 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 15889 |
| Provisional designation | 1997 FD4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 1.92 km (#17,125 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.333 |
| Absolute magnitude (H) | 15.38 |
| Orbital period | 3.38 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 2.14 – 2.36 au |
| Eccentricity | 0.0489 |
| Inclination | 6.50° |
| Closest distance between its orbit and Earth's (MOID) | 1.16 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 March 1997
- (9801) Mikewang
- (18563) Danigoldman
- (19354) Fredkoehler
- (19355) Merpalehmann
- (20206) Annewellbrock
- (20207) Dyckovsky
- (20208) Philiphe
- (21355) Pikovskaya
- (21356) Karlplank
- (21357) Davidying
- (23667) Savinakim
- (23668) Eunbekim