(190057) Nakagawa Main-belt Asteroid
Discovered on 14 September 2004 by Hori, H., Maeno, H. at Nakagawa.
Nakagawa is a river that flows for about 125 km in Tokushima prefecture. The river's source appears to be in the Turugi mountain range. The town bearing the name Nakagawa was eliminated following its amalgamation with Anan City in Mar. 2006.Naming citation (20090607/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nakagawa is today
Seen from above the solar system on 2026-10-14: Nakagawa is 2.43 au from the Sun and 2.45 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 190057 |
| Provisional designation | 2004 RR252 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 16.41 |
| Orbital period | 4.57 years |
| Semi-major axis | 2.76 au |
| Perihelion – aphelion | 2.42 – 3.09 au |
| Eccentricity | 0.122 |
| Inclination | 3.87° |
| Closest distance between its orbit and Earth's (MOID) | 1.40 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.