(27887) Kiyoharu Main-belt Asteroid
Discovered on 12 April 1996 by Endate, K., Watanabe, K. at Kitami.
Kiyoharu Ogasawara (b. 1959) is a Japanese amateur astronomer. He built a private observatory in Hokkaido in 1994 with a 0.5-m telescope and has been conducting follow-up observations of supernovae and other objects.Naming citation (WGSBN Bull. 4, #11, 18), IAU / Minor Planet Center, via NASA/JPL
Where Kiyoharu is today
Seen from above the solar system on 2026-10-14: Kiyoharu is 2.49 au from the Sun and 1.50 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27887 |
| Provisional designation | 1996 GU1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.33 km (#14,392 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.364 |
| Absolute magnitude (H) | 14.36 |
| Orbital period | 3.60 years |
| Semi-major axis | 2.35 au |
| Perihelion – aphelion | 2.18 – 2.52 au |
| Eccentricity | 0.0742 |
| Inclination | 6.71° |
| Closest distance between its orbit and Earth's (MOID) | 1.17 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.