(37586) Isakaayumi Main-belt Asteroid
Discovered on 23 January 1991 by Matsuyama, M., Watanabe, K. at Kushiro.
Ayumi Isaka (b. 1973) is a commentator at the Chihaya Stars and Nature Museum in Chihaya Village, Osaka. She is an amateur astronomer who is well known for giving starry sky commentary while playing the piano. Ayumi is also skilled at photographing nebulae and star clusters.Naming citation (WGSBN Bull. 5, #25, 5), IAU / Minor Planet Center, via NASA/JPL
Where Isakaayumi is today
Seen from above the solar system on 2026-10-14: Isakaayumi is 1.85 au from the Sun and 2.63 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 37586 |
| Provisional designation | 1991 BP2 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.01 km (#10,607 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.308 |
| Rotation period | 887 hours |
| Absolute magnitude (H) | 13.53 |
| Orbital period | 3.55 years |
| Semi-major axis | 2.33 au |
| Perihelion – aphelion | 1.85 – 2.80 au |
| Eccentricity | 0.204 |
| Inclination | 22.2° |
| Closest distance between its orbit and Earth's (MOID) | 0.894 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Ayumi
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