(10399) Nishiharima Main-belt Asteroid
Discovered on 29 October 1997 by T. Kobayashi at Oizumi.
Nishiharima is the southwestern area of Hyogo prefecture and site of the Nishi-Harima Astronomical Observatory.Naming citation (20031110/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nishiharima is today
Seen from above the solar system on 2026-10-14: Nishiharima is 2.22 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 10399 |
| Provisional designation | 1997 UZ8 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.16 km (#10,332 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.241 |
| Rotation period | 6.50 hours |
| Absolute magnitude (H) | 13.79 |
| Orbital period | 3.70 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.20 – 2.58 au |
| Eccentricity | 0.0786 |
| Inclination | 3.84° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 29 October 1997
- (10222) Klotz
- (27978) Lubosluka
- (31151) Sajichugaku
- (31152) Daishinsai
- (33056) Ogunimachi
- (35370) Daisakyu
- (39802) Ivanhlinka
- (44011) Juubichi
- (85512) Rieugnie
- (152647) Rinako