(5387) Casleo Main-belt Asteroid
Discovered on 11 July 1980 by Cerro El Roble at Cerro El Roble.
Casleo, the Complejo Astronómico El Leoncito, is the largest astronomical center in Argentina, located in San Juan province near the Andes mountains in the west of the country. The name was suggested by J. Reyes.Naming citation (20070402/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Casleo is today
Seen from above the solar system on 2026-10-14: Casleo is 2.27 au from the Sun and 1.54 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5387 |
| Provisional designation | 1980 NB |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.49 km (#9,726 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.256 |
| Rotation period | 4.05 hours |
| Absolute magnitude (H) | 13.53 |
| Orbital period | 3.81 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 2.01 – 2.87 au |
| Eccentricity | 0.175 |
| Inclination | 1.62° |
| Closest distance between its orbit and Earth's (MOID) | 0.994 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
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