(55196) Marchini Outer Main-belt Asteroid
Discovered on 11 September 2001 by Boattini, A., Tesi, L. at San Marcello.
Alessandro Marchini (b. 1965) is a computer scientist in the physics department and director of the astronomical observatory of the University of Siena. He also works in the popularization of astronomy.Naming citation (20080618/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Marchini is today
Seen from above the solar system on 2026-10-14: Marchini is 4.38 au from the Sun and 3.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 55196 |
| Provisional designation | 2001 RM16 |
| Orbit class | Outer Main-belt Asteroid |
| Absolute magnitude (H) | 13.67 |
| Orbital period | 7.96 years |
| Semi-major axis | 3.99 au |
| Perihelion – aphelion | 3.37 – 4.60 au |
| Eccentricity | 0.154 |
| Inclination | 5.56° |
| Closest distance between its orbit and Earth's (MOID) | 2.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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