(5561) Iguchi Main-belt Asteroid
Discovered on 17 August 1991 by S. Otomo at Kiyosato.
Where Iguchi is today
Seen from above the solar system on 2026-10-14: Iguchi is 2.15 au from the Sun and 2.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5561 |
| Provisional designation | 1991 QD |
| Orbit class | Main-belt Asteroid |
| Diameter | 6.88 km (#7,791 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.227 |
| Rotation period | 112 hours |
| Absolute magnitude (H) | 13.35 |
| Orbital period | 3.23 years |
| Semi-major axis | 2.19 au |
| Perihelion – aphelion | 1.85 – 2.52 au |
| Eccentricity | 0.155 |
| Inclination | 5.92° |
| Closest distance between its orbit and Earth's (MOID) | 0.857 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 17 August 1991
More named asteroids discovered by S. Otomo
- (5488) Kiyosato
- (5605) Kushida
- (5606) Muramatsu
- (5922) Shouichi
- (5973) Takimoto
- (6043) Aurochs
- (6336) Dodo
- (6410) Fujiwara
- (6729) Emiko
- (6790) Pingouin
- (6866) Kukai
- (6880) Hayamiyu
← (5560) Amytis · (5562) Sumi →