(31489) Matthewchun Main-belt Asteroid
Discovered on 10 February 1999 by LINEAR at Socorro.
Matthew Leong Chun (b. 1996) was awarded second place in the 2014 Intel International Science and Engineering Fair for his chemistry project. He attends the Jericho Senior High School, Jericho, New York, U.S.A.Naming citation (MPC batch dated 2015-07-02), IAU / Minor Planet Center, via NASA/JPL
Where Matthewchun is today
Seen from above the solar system on 2026-10-14: Matthewchun is 2.62 au from the Sun and 2.87 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 31489 |
| Provisional designation | 1999 CN53 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.24 km (#16,705 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.556 |
| Absolute magnitude (H) | 14.82 |
| Orbital period | 3.73 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.17 – 2.65 au |
| Eccentricity | 0.0991 |
| Inclination | 6.85° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Matthew
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All asteroids named after someone called Matthew
Also discovered on 10 February 1999
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