|
Discovery and designation
|
|
|---|---|
| Discovered by | T. Kobayashi |
| Discovery site | Oizumi |
| Discovery date | January 6, 1997 |
|
Designations
|
|
| MPC designation | 8931 |
| Alternate name(s) | 1997 AC4 |
| Epoch May 14, 2008 | |
| Ap | 2.9012251 |
| Peri | 1.8224089 |
| Eccentricity | 0.2283869 |
| Orbital period | 1325.7687912 |
| Mean anomaly | 218.40326 |
| Inclination | 2.22479 |
| Longitude of ascending node | 341.73876 |
| Argument of peri | 329.61144 |
| Absolute magnitude (H) | 14.0 |
8931 Hirokimatsuo (1997 AC4) is a main-belt asteroid discovered on January 6, 1997 by T. Kobayashi at Oizumi.