Skoll (moon)
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Skoll or Saturn XLVII (provisional designation S/2006 S 8) is a retrograde irregular satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt and Jan Kleyna on 26 June 2006 from observations taken between 5 January and 30 April 2006.[1][2]
Skoll is about 5 kilometres in diameter (assuming an albedo of 0.06)[3] and orbits Saturn at an average distance of 17.6 Gm (million km) in 869 days, following a highly eccentric and moderately inclined orbit.[4] A rotation period of Script error: No such module "val". was obtained by Cassini–Huygens in 2016, but this is in strong disagreement with 2013 data for unknown reasons; one possible explanation is variation in the rotation speed and axis due to Milankovitch wobble.[5]
It was named in April 2007 after Sköll, a giant wolf from Norse mythology, son of Fenrir and twin brother of Hati.[6]
References
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- ↑ IAUC 8727: Satellites of Saturn 30 June 2006 (discovery)
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- ↑ Scott Sheppard's pages
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External links
- MPC: Natural Satellites Ephemeris Service
- Mean orbital parameters from NASA JPL
- David Jewitt's pages
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