(18596) Superbus Main-belt Asteroid
Discovered on 21 January 1998 by V. S. Casulli at Colleverde.
Tarquinius Superbus, seventh and last king of Rome, reigned from 534 to 509 B.C. He placed under the dominion of Rome many cities of the Latium region.Naming citation (20020624/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Superbus is today
Seen from above the solar system on 2026-10-14: Superbus is 2.29 au from the Sun and 1.66 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18596 |
| Provisional designation | 1998 BA4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.31 km (#14,450 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0640 |
| Absolute magnitude (H) | 16.03 |
| Orbital period | 3.66 years |
| Semi-major axis | 2.37 au |
| Perihelion – aphelion | 2.10 – 2.65 au |
| Eccentricity | 0.114 |
| Inclination | 3.35° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.