(13027) Geeraerts Main-belt Asteroid
Discovered on 3 April 1989 by E. W. Elst at La Silla.
Jef Geeraerts (Jozef Adriaan Anna van der Heiden, b. 1930) is a Flemish author. After serving as an administrator in Belgian Congo, he devoted himself entirely to literature. His first novel I'm just a Negro (1962) made him famous, although he will be always remembered for Ten letters on love and death (1971).Naming citation (20040306/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Geeraerts is today
Seen from above the solar system on 2026-10-14: Geeraerts is 2.60 au from the Sun and 3.11 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13027 |
| Provisional designation | 1989 GJ4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.97 km (#10,677 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.260 |
| Absolute magnitude (H) | 13.81 |
| Orbital period | 4.09 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.28 – 2.84 au |
| Eccentricity | 0.110 |
| Inclination | 3.76° |
| Closest distance between its orbit and Earth's (MOID) | 1.29 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Jef
All asteroids named after someone called Jef
Also discovered on 3 April 1989
- (5350) Epetersen
- (6006) Anaximandros
- (6152) Empedocles
- (6710) Apostel
- (7014) Nietzsche
- (7933) Magritte
- (8010) Bohnhardt
- (8353) Megryan
- (9325) Stonehenge
- (9578) Klyazma
- (9579) Passchendaele
- (9749) Van den Eijnde