(4585) Ainonai Main-belt Asteroid
Discovered on 16 May 1990 by Endate, K., Watanabe, K. at Kitami.
Where Ainonai is today
Seen from above the solar system on 2026-10-14: Ainonai is 2.08 au from the Sun and 2.46 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 4585 |
| Provisional designation | 1990 KQ |
| Orbit class | Main-belt Asteroid |
| Diameter | 10.9 km (#4,615 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.112 |
| Rotation period | 38.3 hours |
| Absolute magnitude (H) | 13.01 |
| Orbital period | 4.51 years |
| Semi-major axis | 2.73 au |
| Perihelion – aphelion | 2.07 – 3.39 au |
| Eccentricity | 0.241 |
| Inclination | 10.6° |
| Closest distance between its orbit and Earth's (MOID) | 1.06 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 16 May 1990
More named asteroids discovered by Endate, K., Watanabe, K.
- (4042) Okhotsk
- (4126) Mashu
- (4460) Bihoro
- (4491) Otaru
- (4497) Taguchi
- (4508) Takatsuki
- (4547) Massachusetts
- (4607) Seilandfarm
- (4641) Ayako
- (4712) Iwaizumi
- (4773) Hayakawa
- (4839) Daisetsuzan
← (4584) Akan · (4586) Gunvor →