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Saturn's moon Dione, composite Cassini image. On December 14 2004 the Cassini spacecraft passed within 81,500 kilometres of Dione, taking a series of
Saturn's moon Dione, composite Cassini image. On December 14 2004 the Cassini spacecraft passed within 81,500 kilometres of Dione, taking a series of photographs which were combined into this mosaic. Dione is one of 34 satellites of Saturn, the Solar System's second-largest planet. It was originally discovered by Giovanni Cassini, the 17th century astronomer after whom the Cassini spacecraft was named. Its surface is mainly composed of water ice. It has a diameter of 1118 kilometres and it orbits Saturn at a distance of around 380,000 kilometres.
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Photo credit: © NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
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Keywords: 04/12/2004, astronomical, astronomy, black--white, cassini, cassini-huygens, crater, cratered, craters, dione, monochrome, moon, orbit, saturn, solar, space, spacecraft, spaceflight, system