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Telesto

The Columbia Encyclopedia, 6th ed. | 2011 | Copyright

Telesto , in astronomy, one of the named moons, or natural satellites, of Saturn . Also known as Saturn XIII (or S13), Telesto is an irregularly shaped (nonspherical) body measuring about 21 mi (34 km) by 17 mi (28 km) by 16 mi (26 km); it orbits Saturn at a mean distance of 183,093 mi (294,660 km) and has an orbital period of 1.8878 earth days—the rotational period is unknown but is assumed to be the same as the orbital period. It was discovered by Bradford A. Smith, Harold J. Reitsema, Stephen M. Larson, and John W. Fountain at the Univ of Arizona in 1980 from ground-based observations. Telesto is co-orbital with two other moons, Calypso and Tethys ; that is, they orbit Saturn at the same distance. Telesto and Calypso are two of the smallest moons in the solar system.

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Telesto

A Dictionary of Astronomy | 1997 | Copyright

Telesto A satellite of Saturn, occupying the leading Lagrangian point (L₄) in the orbit of Tethys; also known as Saturn XIII. Its distance from the planet is 294 700 km, and its orbital period 1.888 days. Telesto is 30 × 25 × 15 km in size, with a smooth and sparsely cratered surface. It was discovered in 1980 on images from Voyager 1.

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Telesto

A Dictionary of Earth Sciences | 1999 | | Copyright

Telesto (Saturn XII) One of the lesser satellites of Saturn, discovered in 1980 by Voyager 1, with a radius measuring 15 × 12.5 × 7.5 km; visual albedo 0.5.

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AILSA ALLABY and MICHAEL ALLABY. "Telesto." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Telesto." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O13-Telesto.html

AILSA ALLABY and MICHAEL ALLABY. "Telesto." A Dictionary of Earth Sciences. 1999. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Telesto.html

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