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Callisto
Callisto (Jupiter IV) The third largest of the Galilean satellites, with the lowest density, the body is believed not to have differentiated into a core and mantle, consisting throughout of a mixture of rock and ice. Its surface is the darkest of the Galileans (albedo 0.20; though twice as bright as that of the Moon) and Callisto is the most heavily cratered body in the solar system. There is believed to be an almost complete absence of geologic activity at the surface, which has an age of about 4 billion years and shows no sign of any extensive resurfacing. The surface is of dirty ice and there are no large mountains. Surface craters and rings are shallow; the largest structures are Valhalla, a bright patch about 600 × 3000 km, and Asgard, a ring about 1600 km across. The surface temperature is about −45 °C. Callisto was discovered on 7 January 1610 by Galileo. Its diameter is 4806 km; mass 1.077 × 1023 kg; density 1851 kg/m3; surface gravity 0.127 (Earth = 1); mean distance from Jupiter 1.883 × 106 km; mean distance from Sun 5.203 AU; orbital period 16.68902 days; rotational period 16.68902 days.
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AILSA ALLABY and MICHAEL ALLABY. "Callisto." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. AILSA ALLABY and MICHAEL ALLABY. "Callisto." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1O13-Callisto.html AILSA ALLABY and MICHAEL ALLABY. "Callisto." A Dictionary of Earth Sciences. 1999. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Callisto.html |
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Callisto
Callisto The second-largest satellite of Jupiter, and the outermost of the four Galilean satellites; also known as Jupiter IV. It orbits 1 882 700 km from Jupiter's centre in 16.689 days, keeping the same face turned towards the planet. Callisto is 4819 km in diameter but, at magnitude 5.7, is the faintest of the Galilean satellites, because of its low albedo of 0.2. Callisto's density is 1.83 g/cm3. It has an icy surface uniformly covered with impact craters (the largest, Heimdall and Lofn, are 210 and 200 km wide respectively), with little sign of the tectonic resurfacing activity seen on the other Galilean satellites. It has several multi-ringed basins, the two largest being Valhalla (2750 km across, the largest in the Solar System) and Asgard (1350 km across), which are surrounded by numerous concentric rings.
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Cite this article
"Callisto." A Dictionary of Astronomy. 1997. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. "Callisto." A Dictionary of Astronomy. 1997. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1O80-Callisto.html "Callisto." A Dictionary of Astronomy. 1997. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O80-Callisto.html |
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Callisto
Callisto Second-largest and outermost of Jupiter's Galilean satellites, with a diameter of 4800km (3000mi). It is the most heavily cratered object known. As well as the dark dense craters, there are large, multi-ringed impact features, the largest of which is Valhalla, with a diameter of 4000km (2500mi).
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"Callisto." World Encyclopedia. 2005. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. "Callisto." World Encyclopedia. 2005. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1O142-Callisto.html "Callisto." World Encyclopedia. 2005. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-Callisto.html |
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Callisto
Callisto ♂ (Italian) From Greek kallistos ‘best, most fair’, the name of several early saints, including a 3rd-century pope.
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PATRICK HANKS, KATE HARDCASTLE, and FLAVIA HODGES. "Callisto." A Dictionary of First Names. 2006. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. PATRICK HANKS, KATE HARDCASTLE, and FLAVIA HODGES. "Callisto." A Dictionary of First Names. 2006. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1O41-Callisto.html PATRICK HANKS, KATE HARDCASTLE, and FLAVIA HODGES. "Callisto." A Dictionary of First Names. 2006. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O41-Callisto.html |
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Callisto
Callisto kəlĬs´tō , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter . |
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"Callisto." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. "Callisto." The Columbia Encyclopedia, 6th ed.. 2011. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1E1-CallistoAst.html "Callisto." The Columbia Encyclopedia, 6th ed.. 2011. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-CallistoAst.html |
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Callisto
Callisto
•bateau, chateau, gateau, gelato, mulatto, plateau
•de facto, ipso facto
•alto
•canto, Esperanto, manteau, panto, portmanteau
•antipasto, impasto -
•agitato, Ambato, castrato, esparto, inamorato, legato, moderato, obbligato (US obligato), ostinato, pizzicato, rubato, staccato, tomato, vibrato, Waikato
•contralto
•allegretto, amaretto, amoretto, Canaletto, cornetto, falsetto, ghetto, larghetto, libretto, Loreto, Orvieto, Soweto, stiletto, Tintoretto, vaporetto, zucchetto
•perfecto, recto
•cento, cinquecento, divertimento, lento, memento, pimiento, portamento, Risorgimento, Sacramento, Sorrento, Trento
•manifesto, pesto, presto
•concerto
•Cato, Plato, potato
•Benito, bonito, burrito, coquito, graffito, Hirohito, incognito, Ito, magneto, Miskito, mosquito, Quito, Tito, veto
•ditto • in flagrante delicto • mistletoe
•pinto, Shinto
•tiptoe
•Callisto, fritto misto
•cogito • Felixstowe • Sillitoe
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Cite this article
"Callisto." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. 25 May. 2012 <http://www.encyclopedia.com>. "Callisto." Oxford Dictionary of Rhymes. 2007. Encyclopedia.com. (May 25, 2012). http://www.encyclopedia.com/doc/1O233-Callisto.html "Callisto." Oxford Dictionary of Rhymes. 2007. Retrieved May 25, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O233-Callisto.html |
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