(10355) Kojiroharada Main-belt Asteroid
Discovered on 15 March 1993 by Endate, K., Watanabe, K. at Kitami.
Kojiro Harada (b. 1926), mechanical engineer, is a member of Kawasaki Astronomical Association. A long-time observer of double stars, he has also written many fairy tales on stars, dramatizing and performing in them himself.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Kojiroharada is today
Seen from above the solar system on 2026-10-14: Kojiroharada is 2.30 au from the Sun and 1.89 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10355 |
| Provisional designation | 1993 EQ |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.40 km (#11,829 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.209 |
| Rotation period | 5.76 hours |
| Absolute magnitude (H) | 14.62 |
| Orbital period | 3.45 years |
| Semi-major axis | 2.28 au |
| Perihelion – aphelion | 2.18 – 2.39 au |
| Eccentricity | 0.0470 |
| Inclination | 7.18° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Kojiro
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