| Hartley 2 | |
|---|---|
| |
| Diameter | 1 km 0 mi. |
| Distance from primary | 517,608,632 km 321,627,092 mi. |
Hartley 2 is a small periodic comet with an orbital period of 6.46 years. It was discovered by Malcolm Hartley in 1986 at the Schmidt Telescope Unit, Siding Spring Observatory, Australia.