(5777) Hanaki Main-belt Asteroid
Discovered on 3 December 1989 by Mizuno, Y., Furuta, T. at Kani.
Many years ago, Yoichi Hanaki (b. 1937) used to make astronomical observations, notably of Jupiter, with the second discoverer. Later he established the vocational training facility Hoshi-no-mura that endeavors to help mentally handicapped people.Naming citation (20010509/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hanaki is today
Seen from above the solar system on 2026-10-14: Hanaki is 2.25 au from the Sun and 1.84 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5777 |
| Provisional designation | 1989 XF |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 12.72 |
| Orbital period | 4.10 years |
| Semi-major axis | 2.56 au |
| Perihelion – aphelion | 2.03 – 3.09 au |
| Eccentricity | 0.208 |
| Inclination | 8.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Yoichi
All asteroids named after someone called Yoichi