Amalthea

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Amalthea

Amalthea , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .

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"Amalthea." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 29 Nov. 2009 <http://www.encyclopedia.com>.

"Amalthea." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. (November 29, 2009). http://www.encyclopedia.com/doc/1E1-Amalthea.html

"Amalthea." The Columbia Encyclopedia, Sixth Edition. 2008. Retrieved November 29, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1E1-Amalthea.html

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Amalthea

The Oxford Dictionary of Phrase and Fable | 2006 | | Â© The Oxford Dictionary of Phrase and Fable 2006, originally published by Oxford University Press 2006. (Hide copyright information) Copyright

Amalthea in Greek mythology, the she-goat who suckled the infant Zeus when he was hidden to protect him from his father Cronus; Amalthea's horn is another name for the cornucopia or horn of plenty.

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ELIZABETH KNOWLES. "Amalthea." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Encyclopedia.com. 29 Nov. 2009 <http://www.encyclopedia.com>.

ELIZABETH KNOWLES. "Amalthea." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Encyclopedia.com. (November 29, 2009). http://www.encyclopedia.com/doc/1O214-Amalthea.html

ELIZABETH KNOWLES. "Amalthea." The Oxford Dictionary of Phrase and Fable. Oxford University Press. 2006. Retrieved November 29, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O214-Amalthea.html

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Amalthea

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

Amalthea The third-closest satellite of Jupiter, distance 181 400 km, orbital period 0.498 days; also known as Jupiter V. Its axial rotation period is the same as its orbital period. Amalthea was discovered in 1892 by E. E.Barnard. It is noticeably elongated, measuring 250 × 146 × 128 km. Its surface is heavily scarred by impact craters, the largest 90 km wide. The surface has a very low albedo, 0.09, and is distinctly reddish, possibly because of sulphur from Io's volcanoes. Spacecraft measurements yield a mean density of 0.86 g/cm³, indicating a porous structure rich in water ice.

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