(73857) Hitaneichi Main-belt Asteroid
Discovered on 16 November 1996 by T. Okuni at Nanyo.
Hiroshi Taneichi (b. 1927) is a professor emeritus at Yamagata University, who studied photo-reactions at the Laboratory of Nuclear Science, Tohoku University. He is now a member of the Yamagata Astronomical Society.Naming citation (MPC batch dated 2014-05-14), IAU / Minor Planet Center, via NASA/JPL
Where Hitaneichi is today
Seen from above the solar system on 2026-10-14: Hitaneichi is 1.73 au from the Sun and 0.926 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 73857 |
| Provisional designation | 1996 WA3 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.87 |
| Orbital period | 3.36 years |
| Semi-major axis | 2.24 au |
| Perihelion – aphelion | 1.69 – 2.80 au |
| Eccentricity | 0.246 |
| Inclination | 7.85° |
| Closest distance between its orbit and Earth's (MOID) | 0.699 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Hiroshi
- (4965) Takeda
- (5379) Abehiroshi
- (5830) Simohiro
- (6244) Okamoto
- (7250) Kinoshita
- (7254) Kuratani
- (7264) Hirohatanaka
- (8197) Mizunohiroshi
- (8543) Tsunemi
- (8707) Arakihiroshi
- (8891) Irokawa
- (8923) Yamakawa
All asteroids named after someone called Hiroshi