Enkelad (mjesec)
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Enkelad (Enceladus) je prirodni Saturnov satelit kojeg je 1789. otkrio astronom William Herschel. Ime je dobio po gigantu Enkeladu iz starogrčke mitologije. Ovaj satelit ima drugo ime Saturn II. Satelit Enkelad obilazi Saturn svakih 32 h 53 m 7 s, ima prosječni prečnik od 498,9 km i masu od 8,6×1019 kg. Prosječna gustoća Enkelada je 1,3 g/cm3. Raznim mjerenjima iz svemirske letjelice Cassini-Huygens utvrđeno je da je satelit Enkelad napravljen većinom od leda, vode i možda male količine kamena i metala. Početkom 2006. NASA-ina letjelica Cassini snimila je, vjerovatno, tekuću vodu koja izbija iz gejzira na Enkeladu.
Reference[uredi | uredi izvor]
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- Rothery, David A. (1999). Satellites of the Outer Planets: Worlds in their own right. Oxford University Press. ISBN 0-19-512555-X.
- Spahn, Frank; et al. (2006). "Cassini Dust Measurements at Enceladus and Implications for the Origin of the E Ring". Science 311 (5766): 1416–1418.
- Spencer, J. R.; et al. (2006). "Cassini Encounters Enceladus: Background and the Discovery of a South Polar Hot Spot". Science 311 (5766): 1401–1405.
- Turtle, Elizabeth et al. Enceladus, Curiouser and Curiouser: Observations by Cassini's Imaging Science Subsystem. Cassini CHARM Telecon. 28 April 2005. (Adobe Acrobat file).
- Verbiscer, Anne; R. C. French, C. A. McGhee (2005). "The opposition surge of Enceladus: HST observations 338-1022 nm". Icarus 173: 66–83. doi:10.1016/j.icarus.2004.05.001.
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Vanjski linkovi[uredi | uredi izvor]
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Enceladus na Wikimedia Commonsu. |
