(11072) Hiraoka Main-belt Asteroid
Discovered on 3 April 1992 by Endate, K., Watanabe, K. at Kitami.
Hiroyuki Hiraoka (b. 1957) is an elementary-school teacher and amateur astronomer, active in the Hiroshima Astronomical Society.Naming citation (20020526/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Hiraoka is today
Seen from above the solar system on 2026-10-14: Hiraoka is 2.43 au from the Sun and 1.57 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 11072 |
| Provisional designation | 1992 GP |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.75 km (#5,961 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0930 |
| Rotation period | 4.75 hours |
| Absolute magnitude (H) | 13.56 |
| Orbital period | 3.69 years |
| Semi-major axis | 2.39 au |
| Perihelion – aphelion | 2.11 – 2.66 au |
| Eccentricity | 0.115 |
| Inclination | 12.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Hiroyuki
- (7186) Tomioka
- (9642) Takatahiro
- (11928) Akimotohiro
- (19392) Oyamada
- (27816) Naitohiroyuki
- (30925) Todahiroyuki
- (31402) Negishi
- (46649) Tsudahiroyuki
All asteroids named after someone called Hiroyuki