(84120) Antonacci Main-belt Asteroid
Discovered on 4 September 2002 by Bernardi, F., Tombelli, M. at Campo Imperatore.
Domenico Antonacci (b. 1969) has been involved in astronomy outreach for several years. He has been a pioneer for disabled people, in particular the blind. He founded the Associazione Cascinese Astrofili, and has been one of the founders and communicators at the astronomical observatory of Libbiano (PI), Italy.Naming citation (MPC batch dated 2019-12-12), IAU / Minor Planet Center, via NASA/JPL
Where Antonacci is today
Seen from above the solar system on 2026-10-14: Antonacci is 3.16 au from the Sun and 4.10 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 84120 |
| Provisional designation | 2002 RY27 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.7 |
| Orbital period | 4.34 years |
| Semi-major axis | 2.66 au |
| Perihelion – aphelion | 2.17 – 3.16 au |
| Eccentricity | 0.186 |
| Inclination | 13.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Domenico
All asteroids named after someone called Domenico