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Hartley 2
Hartley 2
Diameter 1 km
0 mi.
Distance from primary 517,608,632 km
321,627,092 mi.
Nickname(s) Periodic comet(?)
Comet 103P

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.