(136824) Nonamikeiko Main-belt Asteroid
Discovered on 8 September 1997 by H. Abe at Yatsuka.
Keiko Nonami (b.1960) is a member of Matsue Astronomy Club. She popularizes astronomy in Shimane prefecture and is an observing partner of the discoverer.Naming citation (20111210/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Nonamikeiko is today
Seen from above the solar system on 2026-10-14: Nonamikeiko is 3.18 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 136824 |
| Provisional designation | 1997 RJ5 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.63 |
| Orbital period | 4.47 years |
| Semi-major axis | 2.71 au |
| Perihelion – aphelion | 2.24 – 3.19 au |
| Eccentricity | 0.176 |
| Inclination | 3.97° |
| Closest distance between its orbit and Earth's (MOID) | 1.24 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Keiko
All asteroids named after someone called Keiko