(5185) Alerossi Main-belt Asteroid
Discovered on 15 September 1990 by H. E. Holt at Palomar.
Named in honor of Alessandro Rossi (b. 1964), member of the Group of Satellite Flight Dynamics at the Istituto CNECE in Pisa. Rossi is an expert in space geodesy and participated in the Laser Geodynamics Satellite (LAGEOS) mission. He also studies the manmade space debris that pollutes the near-Earth environment. Rossi has used his expertise to study natural “debris” around space mission targets to optimize encounter/rendezvous operations. He has also studied the hazard of earth-crossing objects. Name suggested and citation prepared by M. A. Barucci and M. Fulchignoni.Naming citation (WGSBN Bull. 5, #28, 6), IAU / Minor Planet Center, via NASA/JPL
Where Alerossi is today
Seen from above the solar system on 2026-10-14: Alerossi is 2.47 au from the Sun and 2.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5185 |
| Provisional designation | 1990 RV2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 13.5 km (#3,536 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0710 |
| Absolute magnitude (H) | 12.71 |
| Orbital period | 4.38 years |
| Semi-major axis | 2.68 au |
| Perihelion – aphelion | 2.46 – 2.90 au |
| Eccentricity | 0.0819 |
| Inclination | 8.37° |
| Closest distance between its orbit and Earth's (MOID) | 1.48 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alessandro
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- (7356) Casagrande
- (11801) Frigeri
- (13704) Aletesi
- (14103) Manzoni
- (15379) Alefranz
- (16683) Alepieri
- (20056) Roccati
- (25276) Dimai
- (48842) Alexmazzanti
- (55196) Marchini
- (70745) Aleserpieri
All asteroids named after someone called Alessandro
Also discovered on 15 September 1990
- (5681) Bakulev
- (6134) Kamagari
- (6311) Porubcan
- (8498) Ufa
- (13049) Butov
- (15258) Alfilipenko
- (21043) Pascalwillis
- (30821) Chernetenko