(12171) Johannink Main-belt Asteroid
Discovered on 16 October 1977 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.
Carl F. Johannink (b. 1959) is a Dutch high-school teacher and amateur astronomer. His main interests lie in meteor astronomy. He is a very prolific meteor observer, active within the Dutch Meteor Society. The name was suggested by K. Miskotte.Naming citation (20100330/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Johannink is today
Seen from above the solar system on 2026-10-14: Johannink is 2.72 au from the Sun and 2.46 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12171 |
| Provisional designation | 2382 T-3 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.64 km (#9,505 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0610 |
| Absolute magnitude (H) | 15.1 |
| Orbital period | 4.53 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.57 – 2.90 au |
| Eccentricity | 0.0603 |
| Inclination | 2.37° |
| 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 Carl
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- (3360) Syrinx
- (5493) Spitzweg
- (6058) Carlnielsen
- (6175) Cori
- (7414) Bosch
- (7911) Carlpilcher
- (7973) Koppeschaar
- (8058) Zuckmayer
- (8268) Goerdeler
- (8677) Charlier
- (9180) Samsagan
All asteroids named after someone called Carl
Also discovered on 16 October 1977
- (3798) de Jager
- (3936) Elst
- (4044) Erikhog
- (4108) Rakos
- (4722) Agelaos
- (4753) Phidias
- (4754) Panthoos
- (5610) Balster
- (5699) Munch
- (5700) Homerus
- (5984) Lysippus
- (6055) Brunelleschi