(29157) Higashinihon Main-belt Asteroid
Discovered on 11 March 1989 by T. Seki at Geisei.
“Higashi Nihon” (East Japan) was struck by one of the most destructive earthquakes in history on 2011 Mar. 11. The whole nation has risen to the task of reconstruction with the spirit of “Ganbarou” (“do your best and don't give up”). Coincidentally, this minor planet was discovered on Mar. 11.Naming citation (20120703/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Higashinihon is today
Seen from above the solar system on 2026-10-14: Higashinihon is 2.09 au from the Sun and 1.96 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 29157 |
| Provisional designation | 1989 ET1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.19 km (#14,737 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.398 |
| Absolute magnitude (H) | 14.6 |
| Orbital period | 3.47 years |
| Semi-major axis | 2.29 au |
| Perihelion – aphelion | 2.05 – 2.54 au |
| Eccentricity | 0.106 |
| Inclination | 6.24° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.