(4712) Iwaizumi Main-belt Asteroid
Discovered on 25 August 1989 by Endate, K., Watanabe, K. at Kitami.
Where Iwaizumi is today
Seen from above the solar system on 2026-10-14: Iwaizumi is 3.40 au from the Sun and 4.38 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4712 |
| Provisional designation | 1989 QE |
| Orbit class | Main-belt Asteroid |
| Diameter | 28.8 km (#1,437 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0950 |
| Rotation period | 6.25 hours |
| Absolute magnitude (H) | 11.54 |
| Orbital period | 5.57 years |
| Semi-major axis | 3.14 au |
| Perihelion – aphelion | 2.69 – 3.59 au |
| Eccentricity | 0.143 |
| Inclination | 12.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.68 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 25 August 1989
More named asteroids discovered by Endate, K., Watanabe, K.
- (4042) Okhotsk
- (4126) Mashu
- (4460) Bihoro
- (4491) Otaru
- (4497) Taguchi
- (4508) Takatsuki
- (4547) Massachusetts
- (4585) Ainonai
- (4607) Seilandfarm
- (4641) Ayako
- (4773) Hayakawa
- (4839) Daisetsuzan
← (4711) Kathy · (4713) Steel →