(21035) Iwabu Main-belt Asteroid
Discovered on 1 January 1990 by Endate, K., Watanabe, K. at Kitami.
Shimeichi Iwabu (b. 1914) became enthralled with total eclipses after witnessing his first in Hokkaido in 1963. Since then, he has taken part in solar-eclipse expeditions to every corner of the world. He witnessed the annular solar eclipse of China in 2010 on what was his 22nd expedition.Naming citation (20121029/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Iwabu is today
Seen from above the solar system on 2026-10-14: Iwabu is 2.72 au from the Sun and 3.70 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 21035 |
| Provisional designation | 1990 AE |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.40 km (#14,217 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.265 |
| Absolute magnitude (H) | 14.64 |
| Orbital period | 3.58 years |
| Semi-major axis | 2.34 au |
| Perihelion – aphelion | 1.76 – 2.92 au |
| Eccentricity | 0.249 |
| Inclination | 4.78° |
| Closest distance between its orbit and Earth's (MOID) | 0.772 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.