(19992) Schonbein Main-belt Asteroid
Discovered on 10 October 1990 by Borngen, F., Schmadel, L. D. at Tautenburg.
German chemist Christian Friedrich Schönbein (1799-1868) was a professor in Basle from 1828. Best known for his discovery of ozone in 1839, he also invented nitrocellulose and collodion wool. He is considered a cofounder of geochemistry.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Schonbein is today
Seen from above the solar system on 2026-10-14: Schonbein is 3.00 au from the Sun and 2.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19992 |
| Provisional designation | 1990 TS9 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.01 km (#5,749 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0410 |
| Absolute magnitude (H) | 14.02 |
| Orbital period | 4.49 years |
| Semi-major axis | 2.72 au |
| Perihelion – aphelion | 2.32 – 3.12 au |
| Eccentricity | 0.147 |
| Inclination | 7.19° |
| Closest distance between its orbit and Earth's (MOID) | 1.33 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Christian
- (3788) Steyaert
- (3905) Doppler
- (7393) Luginbuhl
- (12540) Picander
- (14613) Sanchez
- (15963) Koeberl
- (16984) Veillet
- (22848) Chrisharriot
- (39814) Christianlegrand
- (42613) Schaller
- (55772) Loder
- (62071) Voegtli
All asteroids named after someone called Christian
Also discovered on 10 October 1990
- (5236) Yoko
- (6068) Brandenburg
- (6717) Antal
- (8500) Hori
- (11886) Kraske
- (15727) Ianmorison
- (17460) Mang
- (18360) Sachs
- (19159) Taenakano
- (19162) Wambsganss
- (19993) Gunterseeber
- (21050) Beck