(10640) Varunkumar Main-belt Asteroid
Discovered on 25 November 1998 by LINEAR at Socorro.
Varun Kumar (b. 2001) was a finalist in the 2019 Regeneron Science Talent Search, a science competition for high school seniors, for his medicine and health project. He attended the Bergen County Academies, Hackensack, New Jersey.Naming citation (WGSBN Bull. 3, #3, 7), IAU / Minor Planet Center, via NASA/JPL
Where Varunkumar is today
Seen from above the solar system on 2026-10-14: Varunkumar is 2.55 au from the Sun and 3.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10640 |
| Provisional designation | 1998 WU19 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.97 km (#12,816 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.282 |
| Rotation period | 72.5 hours |
| Absolute magnitude (H) | 14.03 |
| Orbital period | 3.32 years |
| Semi-major axis | 2.22 au |
| Perihelion – aphelion | 1.90 – 2.55 au |
| Eccentricity | 0.145 |
| Inclination | 3.63° |
| Closest distance between its orbit and Earth's (MOID) | 0.920 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.