(21563) Chetgervais Main-belt Asteroid
Discovered on 19 August 1998 by LINEAR at Socorro.
Chetley L. C. Gervais (b. 1988) was awarded first place in the 2005 Intel International Science and Engineering Fair for his medicine and health project. He attends the Sandwich Secondary School, LaSalle, Ontario, Canada.Naming citation (20050822/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Chetgervais is today
Seen from above the solar system on 2026-10-14: Chetgervais is 2.76 au from the Sun and 1.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21563 |
| Provisional designation | 1998 QW95 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.63 km (#6,969 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0760 |
| Absolute magnitude (H) | 14.52 |
| Orbital period | 4.65 years |
| Semi-major axis | 2.79 au |
| Perihelion – aphelion | 2.35 – 3.22 au |
| Eccentricity | 0.156 |
| Inclination | 7.79° |
| Closest distance between its orbit and Earth's (MOID) | 1.34 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 August 1998
- (11736) Viktorfischl
- (12874) Poisson
- (13705) Llapasset
- (14129) DiBucci
- (21562) Chrismessick
- (25015) Lairdclose
- (25074) Honami