(5619) Shair Main-belt Asteroid
Discovered on 26 April 1990 by E. F. Helin at Palomar.
Where Shair is today
Seen from above the solar system on 2026-10-14: Shair is 3.05 au from the Sun and 3.14 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5619 |
| Provisional designation | 1990 HC1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.5 km (#4,307 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.146 |
| Rotation period | 5.06 hours |
| Absolute magnitude (H) | 12.75 |
| Orbital period | 4.25 years |
| Semi-major axis | 2.62 au |
| Perihelion – aphelion | 2.06 – 3.19 au |
| Eccentricity | 0.214 |
| Inclination | 25.3° |
| Closest distance between its orbit and Earth's (MOID) | 1.09 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.