(4670) Yoshinogawa Main-belt Asteroid
Discovered on 19 December 1987 by T. Seki at Geisei.
Where Yoshinogawa is today
Seen from above the solar system on 2026-10-14: Yoshinogawa is 2.45 au from the Sun and 2.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4670 |
| Provisional designation | 1987 YJ |
| Orbit class | Main-belt Asteroid |
| Diameter | 4.39 km (#11,854 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.303 |
| Rotation period | 16.0 hours |
| Absolute magnitude (H) | 13.91 |
| Orbital period | 3.35 years |
| Semi-major axis | 2.24 au |
| Perihelion – aphelion | 2.03 – 2.45 au |
| Eccentricity | 0.0923 |
| Inclination | 5.02° |
| Closest distance between its orbit and Earth's (MOID) | 1.05 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 19 December 1987
More named asteroids discovered by T. Seki
- (2396) Kochi
- (2571) Geisei
- (2582) Harimaya-Bashi
- (2621) Goto
- (2835) Ryoma
- (2880) Nihondaira
- (2961) Katsurahama
- (3150) Tosa
- (3182) Shimanto
- (3262) Miune
- (3431) Nakano
- (3785) Kitami
← (4669) Hoder · (4671) Drtikol →