(12033) Anselmo Outer Main-belt Asteroid
Discovered on 31 January 1997 by Tombelli, M., Munari, U. at Cima Ekar.
Anselmo Antonini (b. 1946) is an amateur astronomer in the Montelupo Group.Naming citation (20001013/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Anselmo is today
Seen from above the solar system on 2026-10-14: Anselmo is 2.92 au from the Sun and 3.91 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 12033 |
| Provisional designation | 1997 BD9 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 10.0 km (#5,086 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0840 |
| Rotation period | 5.31 hours |
| Absolute magnitude (H) | 13.64 |
| Orbital period | 5.83 years |
| Semi-major axis | 3.24 au |
| Perihelion – aphelion | 2.92 – 3.56 au |
| Eccentricity | 0.0997 |
| Inclination | 2.56° |
| Closest distance between its orbit and Earth's (MOID) | 1.92 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 January 1997
- (9112) Hatsulars
- (9232) Miretti
- (12032) Ivory
- (12470) Pinotti
- (13192) Quine
- (13652) Elowitz
- (20192) Thomasback
- (21336) Andyblanchard