(287433) de Groot Main-belt Asteroid
Discovered on 23 November 2002 by NEAT at Palomar.
Henk de Groot (b. 1954) is a Dutch amateur astronomer and secretary of the Dutch Society of Observers of Occultations and Minor Planets. He is an active observer of stellar occultations and asteroid brightness variations.Naming citation (WGSBN Bull. 4, #1, 9), IAU / Minor Planet Center, via NASA/JPL
Where de Groot is today
Seen from above the solar system on 2026-10-14: de Groot is 3.11 au from the Sun and 4.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 287433 |
| Provisional designation | 2002 WQ28 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.76 |
| Orbital period | 5.53 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.51 – 3.74 au |
| Eccentricity | 0.196 |
| Inclination | 15.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.57 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Henk
All asteroids named after someone called Henk