(7418) Akasegawa Main-belt Asteroid
Discovered on 11 March 1991 by Fujii, T., Watanabe, K. at Kitami.
Genpei Akasegawa (b. 1937) is a famous novelist in Japan and also an astronomy fan. His work contributes to the spread of amateur astronomy.Naming citation (20010109/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Akasegawa is today
Seen from above the solar system on 2026-10-14: Akasegawa is 2.31 au from the Sun and 2.49 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7418 |
| Provisional designation | 1991 EJ1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.83 km (#13,146 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.692 |
| Rotation period | 15.2 hours |
| Absolute magnitude (H) | 13.51 |
| Orbital period | 3.62 years |
| Semi-major axis | 2.36 au |
| Perihelion – aphelion | 2.23 – 2.48 au |
| Eccentricity | 0.0524 |
| Inclination | 7.28° |
| Closest distance between its orbit and Earth's (MOID) | 1.24 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.