(5737) Itoh Main-belt Asteroid
Discovered on 30 September 1989 by Nomura, T., Kawanishi, K. at Minami-Oda.
Japanese amateur astronomer Kazuyuki Itoh (b. 1951) has made more than 1000 astrometric observations of comets and minor planets. He discovered minor planet (6879) Hyogo. The name was suggested by M. Sugano.Naming citation (20000124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Itoh is today
Seen from above the solar system on 2026-10-14: Itoh is 2.21 au from the Sun and 2.75 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 5737 |
| Provisional designation | 1989 SK |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.39 km (#9,900 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.312 |
| Absolute magnitude (H) | 13.5 |
| Orbital period | 4.03 years |
| Semi-major axis | 2.53 au |
| Perihelion – aphelion | 2.00 – 3.06 au |
| Eccentricity | 0.211 |
| Inclination | 5.85° |
| Closest distance between its orbit and Earth's (MOID) | 1.02 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Kazuyuki
All asteroids named after someone called Kazuyuki