(158623) Perali Main-belt Asteroid
Discovered on 24 January 2003 by Boattini, A., Scholl, H. at La Silla.
Mirella Perali (b. 1931), an amateur astronomer from an early age, developed a keen interest in solar system dynamics, cosmology and the history of astronomy. She wrote several biographies of scientists and essays on the interplay between astronomy and classical literature.Naming citation (20080520/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Perali is today
Seen from above the solar system on 2026-10-14: Perali is 2.02 au from the Sun and 1.32 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 158623 |
| Provisional designation | 2003 BS4 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.81 |
| Orbital period | 3.48 years |
| Semi-major axis | 2.30 au |
| Perihelion – aphelion | 1.99 – 2.61 au |
| Eccentricity | 0.134 |
| Inclination | 6.60° |
| Closest distance between its orbit and Earth's (MOID) | 0.994 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Mirella
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