(6990) Toya Main-belt Asteroid
Discovered on 9 December 1994 by T. Kobayashi at Oizumi.
Mt. Toya, 668 m above sea level, is located at the boundary of the towns Minano-machi, Higashi-Chichibu-mura and Yorii-machi in western Saitama prefecture. On its hillside is the Noboriya Highland Ranch, which accommodates the Chichibu Hoshi-no-sato, home to more than ten amateur astronomical observatories.Naming citation (20030106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
👶 Toya as a baby name🐶 Toya as a dog name
Where Toya is today
Seen from above the solar system on 2026-10-14: Toya is 3.45 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 6990 |
| Provisional designation | 1994 XU4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 14.0 km (#3,388 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.108 |
| Rotation period | 15.6 hours |
| Absolute magnitude (H) | 13.16 |
| Orbital period | 5.58 years |
| Semi-major axis | 3.15 au |
| Perihelion – aphelion | 2.74 – 3.55 au |
| Eccentricity | 0.128 |
| Inclination | 2.90° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.