(158) Koronis Main-belt Asteroid
Discovered on 4 January 1876 by V. Knorre at Berlin.
Where Koronis is today
Seen from above the solar system on 2026-10-14: Koronis is 2.77 au from the Sun and 3.03 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 158 |
| Provisional designation | A876 AA |
| Orbit class | Main-belt Asteroid |
| Diameter | 39.0 km (#998 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.213 |
| Rotation period | 14.2 hours |
| Spectral type | S |
| Absolute magnitude (H) | 9.32 |
| Orbital period | 4.86 years |
| Semi-major axis | 2.87 au |
| Perihelion – aphelion | 2.71 – 3.02 au |
| Eccentricity | 0.0537 |
| Inclination | 1.01° |
| Closest distance between its orbit and Earth's (MOID) | 1.73 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by V. Knorre
← (157) Dejanira · (159) Aemilia →