103P/Hartley
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Comet Hartley 2, designated 103P/Hartley by the Minor Planet Center, is a small periodic comet with an orbital period of 6.48 years. It was discovered by Malcolm Hartley in 1986 at the Schmidt Telesco
Comet 103P/Hartley closeup, from EPOXI.
103P with Double Cluster in Perseus 9 October 2010.
Comet Hartley 2 on 2 November 2010 from a distance of 2.3 million kilometers, as photographed by the Deep Impact spacecraft.
Hyakutake Color
Comet
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A comet is an icy, small Solar System body or interstellar object that warms and begins to release gases when passing close to the Sun, a process called outgassing. This produces an extended, gravitat
103P/Hartley
…spacecraft, and the second comet visited by the Deep Impact spacecraft, which first visited comet Tempel 1 on 4 July 2005. Comet Hartley 2 is a small Jupiter-family comet having an orbital period of 6.46 years. It was discovered by Malcolm Hartley in 1986 at the Schmidt Telescope Unit, Siding Spring Observatory, Australia…
Comet Hale–Bopp after passing perihelion in April 1997
Structure of a comet
Comet 81P/Wild exhibits jets on light side and dark side, stark relief, and is dry.
Hubble image of Comet ISON shortly before perihelion.