(33421) Byronxu Main-belt Asteroid
Discovered on 13 February 1999 by LINEAR at Socorro.
Byron Lee Xu (b. 1999) is a finalist in the 2017 Regeneron Science Talent Search, a science competition for high school seniors, for his earth and planetary project. He attends the William P. Clements High School, Sugar Land, Texas.Naming citation (MPC batch dated 2017-07-09), IAU / Minor Planet Center, via NASA/JPL
Where Byronxu is today
Seen from above the solar system on 2026-10-14: Byronxu is 2.59 au from the Sun and 3.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 33421 |
| Provisional designation | 1999 CN118 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.59 km (#16,089 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.502 |
| Absolute magnitude (H) | 14.81 |
| Orbital period | 3.42 years |
| Semi-major axis | 2.27 au |
| Perihelion – aphelion | 1.95 – 2.59 au |
| Eccentricity | 0.140 |
| Inclination | 1.15° |
| Closest distance between its orbit and Earth's (MOID) | 0.946 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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