(2563) Boyarchuk Main-belt Asteroid
Discovered on 22 March 1977 by N. S. Chernykh at Nauchnyj.
Where Boyarchuk is today
Seen from above the solar system on 2026-10-14: Boyarchuk is 3.21 au from the Sun and 2.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2563 |
| Provisional designation | 1977 FZ |
| Orbit class | Main-belt Asteroid |
| Diameter | 24.5 km (#1,728 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0950 |
| Rotation period | 11.0 hours |
| Absolute magnitude (H) | 11.92 |
| Orbital period | 5.70 years |
| Semi-major axis | 3.19 au |
| Perihelion – aphelion | 2.73 – 3.65 au |
| Eccentricity | 0.145 |
| Inclination | 2.04° |
| Closest distance between its orbit and Earth's (MOID) | 1.74 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.