(4631) Yabu Main-belt Asteroid
Discovered on 22 November 1987 by Ueda, S., Kaneda, H. at Kushiro.
Where Yabu is today
Seen from above the solar system on 2026-10-14: Yabu is 2.49 au from the Sun and 2.86 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4631 |
| Provisional designation | 1987 WE1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.45 km (#9,787 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.311 |
| Rotation period | 7.36 hours |
| Absolute magnitude (H) | 13.57 |
| Orbital period | 3.34 years |
| Semi-major axis | 2.23 au |
| Perihelion – aphelion | 1.96 – 2.51 au |
| Eccentricity | 0.124 |
| Inclination | 7.41° |
| Closest distance between its orbit and Earth's (MOID) | 0.981 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 22 November 1987
More named asteroids discovered by Ueda, S., Kaneda, H.
- (3720) Hokkaido
- (4000) Hipparchus
- (4096) Kushiro
- (4127) Kyogoku
- (4155) Watanabe
- (4215) Kamo
- (4260) Yanai
- (4282) Endate
- (4284) Kaho
- (4343) Tetsuya
- (4350) Shibecha
- (4410) Kamuimintara
← (4630) Chaonis · (4632) Udagawa →