(4555) Josefaperez Main-belt Asteroid
Discovered on 24 August 1987 by S. Singer-Brewster at Palomar.
María Josefa Pérez (1970-2014) was an astronomer at the Instituto de Astronomía y Física del Espacio, Buenos Aires, and at the La Plata Astronomical Observatory, who worked in extragalactic astronomy. She died after a painful battle against cancer.Naming citation (MPC batch dated 2014-10-08), IAU / Minor Planet Center, via NASA/JPL
Where Josefaperez is today
Seen from above the solar system on 2026-10-14: Josefaperez is 2.63 au from the Sun and 3.34 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4555 |
| Provisional designation | 1987 QL |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.13 km (#14,902 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.364 |
| Rotation period | 2.88 hours |
| Absolute magnitude (H) | 14.28 |
| Orbital period | 3.40 years |
| Semi-major axis | 2.26 au |
| Perihelion – aphelion | 1.81 – 2.71 au |
| Eccentricity | 0.198 |
| Inclination | 7.40° |
| Closest distance between its orbit and Earth's (MOID) | 0.802 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Maria
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All asteroids named after someone called Maria