(33151) Tomasobelloni Main-belt Asteroid
Discovered on 25 February 1998 by Cavagna, M., Ghezzi, P. at Sormano.
Tomaso Belloni (1961–2023) was a prominent Italian astrophysicist recognized internationally for his research on compact objects and gamma-ray emissions. He was also an active science communicator and photographer.Naming citation (WGSBN Bull. 4, #6, 7), IAU / Minor Planet Center, via NASA/JPL
Where Tomasobelloni is today
Seen from above the solar system on 2026-10-14: Tomasobelloni is 2.86 au from the Sun and 2.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 33151 |
| Provisional designation | 1998 DY11 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 5.69 hours |
| Absolute magnitude (H) | 14.8 |
| Orbital period | 4.37 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.35 – 3.00 au |
| Eccentricity | 0.121 |
| Inclination | 13.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.37 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.