(9878) Sostero Main-belt Asteroid
Discovered on 17 March 1994 by Farra d'Isonzo at Farra d'Isonzo.
Giovanni Sostero (b. 1964), an Italian amateur astronomer since age 10 and now at the Remanzacco Observatory, works on cataclysmic variables and field studies of comets. An aerospace engineer, he works at the Italian synchrotron radiation source and, during the summer, at the Visnjan School of Astronomy in Croatia.Naming citation (20020921/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Sostero is today
Seen from above the solar system on 2026-10-14: Sostero is 2.70 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9878 |
| Provisional designation | 1994 FQ |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.13 km (#6,449 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0560 |
| Absolute magnitude (H) | 14.46 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.69 – 3.48 au |
| Eccentricity | 0.128 |
| Inclination | 16.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.71 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Giovanni
- (6509) Giovannipratesi
- (6852) Nannibignami
- (7317) Cabot
- (7328) Casanova
- (8123) Canaletto
- (10928) Caprara
- (12433) Barbieri
- (12812) Cioni
- (15036) Giovannianselmi
- (15950) Dallago
- (16682) Donati
- (16745) Zappa
All asteroids named after someone called Giovanni