| Discovery Ref: | [1] |
| Skoll | |
| Mpc Name: | Saturn XLVII |
| Alt Names: | S/2006 S 8 |
| Pronounced: | in Norse, Old skœlː/ (approximately ) |
| Named After: | Sköll |
| Discoverer: | S. S. Sheppard D. C. Jewitt J. Kleyna |
| Discovered: | 2006 |
| Orbit Ref: | [2] |
| Eccentricity: | 0.418 |
| Inclination: | 156° |
| Group: | Norse group |
| Satellite Of: | Saturn |
| Period: | 869 days (2.38 yr) |
| Physical Ref: | [3] |
| Rotation: | ? h |
| Albedo: | 0.06 (assumed) |
| Magnitude: | 24.5 |
| Abs Magnitude: | 15.4 |
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.[2] [4]
Skoll is about 5 kilometres in diameter (assuming an albedo of 0.06) and orbits Saturn at an average distance of 17.6 Gm (million km) in 869 days, following a highly eccentric and moderately inclined orbit.[5] A rotation period of 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.[6]
It was named in April 2007 after Sköll, a giant wolf from Norse mythology, son of Fenrir and twin brother of Hati.[7]