(4158) Santini Outer Main-belt Asteroid
Discovered on 28 January 1989 by Osservatorio San Vittore at Bologna.
Where Santini is today
Seen from above the solar system on 2026-10-14: Santini is 3.46 au from the Sun and 4.01 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4158 |
| Provisional designation | 1989 BE |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 16.8 km (#2,726 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.172 |
| Rotation period | 144 hours |
| Absolute magnitude (H) | 11.75 |
| Orbital period | 6.30 years |
| Semi-major axis | 3.41 au |
| Perihelion – aphelion | 3.36 – 3.47 au |
| Eccentricity | 0.0159 |
| Inclination | 6.16° |
| Closest distance between its orbit and Earth's (MOID) | 2.35 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 28 January 1989
More named asteroids discovered by Osservatorio San Vittore
- (2601) Bologna
- (3344) Modena
- (3744) Horn-d'Arturo
- (3809) Amici
- (3951) Zichichi
- (4062) Schiaparelli
- (4063) Euforbo
- (4122) Ferrari
- (4279) De Gasparis
- (4540) Oriani
- (4542) Mossotti
- (4705) Secchi
← (4157) Izu · (4159) Freeman →