(5128) Wakabayashi Main-belt Asteroid
Discovered on 30 March 1989 by M. Koishikawa at Ayashi.
Where Wakabayashi is today
Seen from above the solar system on 2026-10-14: Wakabayashi is 2.71 au from the Sun and 3.42 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5128 |
| Provisional designation | 1989 FJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 18.3 km (#2,446 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0650 |
| Rotation period | 5.86 hours |
| Absolute magnitude (H) | 12.95 |
| Orbital period | 4.60 years |
| Semi-major axis | 2.77 au |
| Perihelion – aphelion | 2.37 – 3.16 au |
| Eccentricity | 0.143 |
| Inclination | 6.95° |
| Closest distance between its orbit and Earth's (MOID) | 1.39 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 30 March 1989
More named asteroids discovered by M. Koishikawa
- (3994) Ayashi
- (4292) Aoba
- (4407) Taihaku
- (4539) Miyagino
- (4871) Riverside
- (5751) Zao
- (6089) Izumi
- (6190) Rennes
- (6349) Acapulco
- (6859) Datemasamune
- (7485) Changchun
- (7816) Hanoi
← (5127) Bruhns · (5129) Groom →