(5881) Akashi Main-belt Asteroid
Discovered on 27 September 1992 by Sugano, M., Nomura, T. at Minami-Oda.
Named for a city facing the Setouchi Inland Sea. Akashi Municipal Planetarium was established in 1960 precisely on the meridian for Japan Standard Time (135° east of Greenwich), and about 6.6 million people have visited it.Naming citation (19990728/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Akashi is today
Seen from above the solar system on 2026-10-14: Akashi is 2.63 au from the Sun and 1.73 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5881 |
| Provisional designation | 1992 SR12 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.80 km (#5,919 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.250 |
| Rotation period | 4.28 hours |
| Absolute magnitude (H) | 12.7 |
| Orbital period | 4.82 years |
| Semi-major axis | 2.85 au |
| Perihelion – aphelion | 2.63 – 3.08 au |
| Eccentricity | 0.0792 |
| Inclination | 2.68° |
| Closest distance between its orbit and Earth's (MOID) | 1.63 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.