(13679) Shinanogawa Main-belt Asteroid
Discovered on 29 July 1997 by T. Okuni at Nanyo.
Shinanogawa is the river that flows from Nagano prefecture to Niigata prefecture and into the Sea of Japan. The longest river in Japan, it has a total length of 367 kilometers.Naming citation (20090409/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Shinanogawa is today
Seen from above the solar system on 2026-10-14: Shinanogawa is 2.58 au from the Sun and 1.92 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13679 |
| Provisional designation | 1997 OZ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.74 km (#9,318 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.308 |
| Rotation period | 2.81 hours |
| Absolute magnitude (H) | 13.29 |
| Orbital period | 4.13 years |
| Semi-major axis | 2.58 au |
| Perihelion – aphelion | 2.35 – 2.81 au |
| Eccentricity | 0.0892 |
| Inclination | 14.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.39 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.