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Skathi ( ), or Saturn XXVII, is a natural satellite of Saturn. It was discovered by Brett Gladman, Kavelaars and colleagues in 2000, and given the temporary designation S/2000 S 8.〔(IAUC 7538: ''S/2000 S 7, S/2000 S 8, S/2000 S 9'' ) 7 December 2000 (discovery)〕〔(MPEC 2000-Y15: ''S/2000 S 1, S/2000 S 2, S/2000 S 7, S/2000 S 8, S/2000 S 9'' ) 19 December 2000 (discovery and ephemeris)〕 Skathi is about 8 kilometres in diameter and orbits Saturn at an average distance of 15.576 Gm in 725.784 days, at an inclination of 149° to the ecliptic (150° to Saturn's equator), in a retrograde direction and with an eccentricity of 0.246. The name is given as Skadi by most sources. This is the name that was originally announced in 2003;〔(IAUC 8177: ''Satellites of Jupiter, Saturn, Uranus'' ) 8 August 2003 (naming the moon)〕 however, the IAU Working Group on Planetary System Nomenclature (WGPSN) decided in early 2005 to use an alternative transliteration of the Norse spelling.〔(IAUC 8471: ''Satellites of Saturn'' ) 21 January 2005 (naming the moon)〕 The classical spelling is ''Skaði'', with the letter Ð (''eth''), and the original form ''Skadi'' was a graphic approximation of that. Skathi may have been formed from debris knocked off Phoebe by large impacts at some point in the Solar System's history. Its name comes from Norse mythology, where Skaði is a giantess who is the wife of the Vanir god Niord. ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Skathi (moon)」の詳細全文を読む スポンサード リンク
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