(19310) Osawa Main-belt Asteroid
Discovered on 4 November 1996 by Sato, I., Fukushima, H. at Mitaka.
Osawa, meaning “big dale”, is the name of the area in the southwestern part of Mitaka City where the National Observatory is located. The name was selected by the observatory's Steering Committee among candidates nominated by observatory staff members.Naming citation (20020526/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Osawa is today
Seen from above the solar system on 2026-10-14: Osawa is 2.06 au from the Sun and 1.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19310 |
| Provisional designation | 1996 VF1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.39 km (#11,860 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0850 |
| Absolute magnitude (H) | 15.44 |
| Orbital period | 3.73 years |
| Semi-major axis | 2.41 au |
| Perihelion – aphelion | 2.03 – 2.78 au |
| Eccentricity | 0.155 |
| Inclination | 3.78° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.