(117539) Celletti Main-belt Asteroid
Discovered on 17 February 2005 by Boattini, A., Scholl, H. at La Silla.
Alessandra Celletti (b. 1962) is an associate professor at the University of Roma “Tor Vergata”, where she teaches celestial mechanics and the theory of dynamical systems. Since 2001 she has been president of the Italian society of Celestial Mechanics and Astrodynamics.Naming citation (20070402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Celletti is today
Seen from above the solar system on 2026-10-14: Celletti is 2.90 au from the Sun and 3.34 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 117539 |
| Provisional designation | 2005 DJ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.75 km (#9,297 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0370 |
| Rotation period | 8.96 hours |
| Absolute magnitude (H) | 15.56 |
| Orbital period | 5.52 years |
| Semi-major axis | 3.13 au |
| Perihelion – aphelion | 2.79 – 3.46 au |
| Eccentricity | 0.107 |
| Inclination | 0.532° |
| Closest distance between its orbit and Earth's (MOID) | 1.80 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Alessandra
All asteroids named after someone called Alessandra