(8447) Cornejo Main-belt Asteroid
Discovered on 16 July 1974 by Felix Aguilar Observatory at El Leoncito.
Antonio Cornejo (b. 1930) was the founder and director for over 30 years of the Galileo Galilei Planetarium in Buenos Aires. He took part in numerous international meetings sponsored by planetarium associations.Naming citation (20080520/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Cornejo is today
Seen from above the solar system on 2026-10-14: Cornejo is 2.16 au from the Sun and 3.07 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 8447 |
| Provisional designation | 1974 OE |
| Orbit class | Main-belt Asteroid |
| Rotation period | 6.28 hours |
| Absolute magnitude (H) | 14.19 |
| Orbital period | 3.51 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 2.04 – 2.58 au |
| Eccentricity | 0.118 |
| Inclination | 7.13° |
| Closest distance between its orbit and Earth's (MOID) | 1.04 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Antonio
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All asteroids named after someone called Antonio