(9784) Yotsubashi Main-belt Asteroid
Discovered on 31 December 1994 by T. Kobayashi at Oizumi.
Yotsubashi, in the center of Osaka, is where the astronomers of the Edo period observed eclipses. The first science center in Japan was established in Yostubashi in 1937.Naming citation (20020921/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Yotsubashi is today
Seen from above the solar system on 2026-10-14: Yotsubashi is 2.64 au from the Sun and 2.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 9784 |
| Provisional designation | 1994 YJ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.88 km (#5,166 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0950 |
| Absolute magnitude (H) | 13.7 |
| Orbital period | 4.55 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.59 – 2.90 au |
| Eccentricity | 0.0552 |
| Inclination | 5.45° |
| Closest distance between its orbit and Earth's (MOID) | 1.60 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 31 December 1994
- (7602) Yidaeam
- (8207) Suminao
- (9785) Senjikan
- (10160) Totoro
- (10161) Nakanoshima
- (10367) Sayo
- (55815) Melindakim