(2249) Yamamoto Outer Main-belt Asteroid
Discovered on 6 April 1942 by K. Reinmuth at Heidelberg.
Where Yamamoto is today
Seen from above the solar system on 2026-10-14: Yamamoto is 3.28 au from the Sun and 4.00 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2249 |
| Provisional designation | 1942 GA |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 33.6 km (#1,206 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0620 |
| Rotation period | 31.6 hours |
| Absolute magnitude (H) | 11.23 |
| Orbital period | 5.73 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.96 – 3.44 au |
| Eccentricity | 0.0759 |
| Inclination | 4.12° |
| Closest distance between its orbit and Earth's (MOID) | 1.94 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.