(30886) Hayashitadashi Main-belt Asteroid
Discovered on 17 November 1992 by Endate, K., Watanabe, K. at Kitami.
Tadashi Hayashi (b. 1971) is a Japanese astronomer and Chief Curator of Astronomy at the Toyama Science Museum. He was involved in the development of a microlens-array 3D spectrometer and has been observing HII regions. Recently, he has been concentrating on popularizing astronomy.Naming citation (WGSBN Bull. 5, #3, 14), IAU / Minor Planet Center, via NASA/JPL
Where Hayashitadashi is today
Seen from above the solar system on 2026-10-14: Hayashitadashi is 2.65 au from the Sun and 3.19 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 30886 |
| Provisional designation | 1992 WJ1 |
| Orbit class | Main-belt Asteroid |
| Rotation period | 345 hours |
| Absolute magnitude (H) | 13.68 |
| Orbital period | 4.40 years |
| Semi-major axis | 2.69 au |
| Perihelion – aphelion | 2.12 – 3.25 au |
| Eccentricity | 0.210 |
| Inclination | 14.0° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Tadashi
All asteroids named after someone called Tadashi