(400193) Castion Main-belt Asteroid
Discovered on 14 December 2006 by Boattini, A., Mazzucato, M. at San Marcello.
Castión is the dialectal name of the city Castiglione dei Pepoli, medieval fiefdom of the Pepoli noble family, in the Bolognese Apennines, Italy. The second discoverer has lived there for many years.Naming citation (MPC batch dated 2018-09-25), IAU / Minor Planet Center, via NASA/JPL
Where Castion is today
Seen from above the solar system on 2026-10-14: Castion is 3.06 au from the Sun and 3.71 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 400193 |
| Provisional designation | 2006 XW60 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.58 km (#16,106 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0610 |
| Absolute magnitude (H) | 16.8 |
| Orbital period | 4.29 years |
| Semi-major axis | 2.64 au |
| Perihelion – aphelion | 1.87 – 3.41 au |
| Eccentricity | 0.292 |
| Inclination | 12.5° |
| Closest distance between its orbit and Earth's (MOID) | 0.879 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.