(5287) Heishu Main-belt Asteroid
Discovered on 20 November 1989 by Mizuno, Y., Furuta, T. at Kani.
Where Heishu is today
Seen from above the solar system on 2026-10-14: Heishu is 3.17 au from the Sun and 4.15 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5287 |
| Provisional designation | 1989 WE |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.25 km (#6,352 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.259 |
| Rotation period | 15.7 hours |
| Absolute magnitude (H) | 12.91 |
| Orbital period | 4.39 years |
| Semi-major axis | 2.68 au |
| Perihelion – aphelion | 2.12 – 3.24 au |
| Eccentricity | 0.209 |
| Inclination | 6.46° |
| Closest distance between its orbit and Earth's (MOID) | 1.14 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.