(263516) Alexescu Main-belt Asteroid
Discovered on 13 March 2008 by EURONEAR at La Silla.
Matei Alexescu (1929-1993) was a Romanian astronomer working mainly in public outreach. As director of the Urseanu Observatory in Bucharest and founder of the Planetarium in Bacau, he wrote many books and gave tutorials dealing with practical astronomy.Naming citation (20110517/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Alexescu is today
Seen from above the solar system on 2026-10-14: Alexescu is 2.79 au from the Sun and 3.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 263516 |
| Provisional designation | 2008 EW144 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 17.02 |
| Orbital period | 3.87 years |
| Semi-major axis | 2.47 au |
| Perihelion – aphelion | 2.12 – 2.82 au |
| Eccentricity | 0.142 |
| Inclination | 7.23° |
| Closest distance between its orbit and Earth's (MOID) | 1.12 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.