Skoll (moon)

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][5]

Skoll
Discovery[1]
Discovered by	S. S. Sheppard D. C. Jewitt J. Kleyna
Discovery date	2006
Designations
Designation	Saturn XLVII
Pronunciation	English: /skɒl/ Old Norse: [skœlː] (approximately /skɜːrl/)
Named after	Sköll
Alternative names	S/2006 S 8
Orbital characteristics[2]
Semi-major axis	17.56 Gm
Eccentricity	0.418
Orbital period (sidereal)	869 days (2.38 yr)
Inclination	156°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	5+50% −30% km[3]
Synodic rotation period	7.26±0.09? h[3]
Albedo	0.04 (assumed)[4]

Skoll is about 6 kilometres in diameter (assuming an albedo of 0.04)[4] and orbits Saturn at an average distance of 17.6 Gm (million km) in 869 days, following a highly eccentric and moderately inclined orbit.

It was named in April 2007[6] after Sköll, a giant wolf from Norse mythology, son of Fenrir and twin brother of Hati.

References

Discovery Circumstances from JPL
MPEC 2006-M45: Eight New Satellites of Saturn 26 June 2006 (discovery and ephemeris)
Denk, T.; Mottola, S. (2019). Cassini Observations of Saturn's Irregular Moons (PDF). 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute.
Scott Sheppard's pages
IAUC 8727: Satellites of Saturn 30 June 2006 (discovery)
IAUC 8826: Satellites of Jupiter and Saturn 5 April 2007 (naming the moon)

MPC: Natural Satellites Ephemeris Service
Mean orbital parameters from NASA JPL

External links

Wikimedia Commons has media related to Skoll (moon).

David Jewitt's pages

Saturn
Outline of Saturn
Geography	Dragon Storm Great White Spot Hexagon Magnetosphere Rings
Moons	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus S/2004 S 6 S/2004 S 4 S/2004 S 3 Pandora Epimetheus Janus Aegaeon Mimas Methone Anthe Pallene Enceladus Tethys Telesto Calypso Dione Helene Polydeuces Rhea Titan Hyperion Iapetus S/2019 S 1 Kiviuq Ijiraq Phoebe Paaliaq Skathi S/2004 S 37 Albiorix S/2007 S 2 Saturn LX Bebhionn Erriapus Skoll S/2004 S 31 Siarnaq Tarqeq S/2004 S 13 Greip Hyrrokkin Jarnsaxa Tarvos Mundilfari S/2006 S 1 S/2004 S 17 Bergelmir Narvi Saturn LIV Suttungr Hati S/2004 S 12 Saturn LIX Farbauti Thrymr Saturn LXI Aegir S/2007 S 3 Bestla S/2004 S 7 Saturn LV Saturn LVI Saturn LVII Saturn LXII S/2006 S 3 Saturn LXVI Fenrir S/2004 S 28 Surtur Kari Saturn LXV Ymir S/2004 S 21 S/2004 S 24 Loge S/2004 S 36 S/2004 S 39 Saturn LXIII Saturn LXIV Fornjot Saturn LVIII
Astronomy	Delta Octantis Saturn-crossing minor planets
Exploration	Cassini–Huygens (Huygens) timeline retirement Pioneer 11 Voyager program Voyager 1 Voyager 2
Related	Fiction The Day the Earth Smiled In Saturn's Rings (2018 documentary)

Natural satellites of the Solar System
Planetary satellites of	Earth Mars Jupiter Saturn Uranus Neptune
Dwarf planet satellites of	Orcus Pluto Haumea Quaoar Makemake Gonggong Eris
Minor-planet moons	· Near-Earth: Florence Didymos (Dimorphos) Moshup (Squannit) 1994 CC 2001 SN₂₆₃ Main belt: Kalliope (Linus) Euphrosyne Daphne (Peneius) Eugenia (Petit-Prince) Sylvia (Romulus · Remus) Minerva (Aegis · Gorgoneion) Camilla Elektra Kleopatra (Alexhelios · Cleoselene) Ida (Dactyl) Roxane (Olympias) Pulcova Balam Jupiter trojans: Patroclus (Menoetius) Hektor (Skamandrios) Eurybates (Queta) TNOs: Lempo (Hiisi · Paha) 2002 UX₂₅ Sila–Nunam Salacia (Actaea) Varda (Ilmarë) Gǃkúnǁʼhòmdímà (Gǃòʼé ǃHú) 2013 FY₂₇
Ranked by size	Planetary-mass moon Ganymede largest: 5268 km / 0.413 Earths Titan Callisto Io Moon Europa Triton Titania Rhea Oberon Iapetus Charon Umbriel Ariel Dione Tethys Dysnomia Enceladus Miranda Vanth Proteus Mimas Ilmarë Nereid Hiʻiaka Actaea Hyperion Phoebe ...
Discovery timeline Inner moons Irregular moons List Planetary-mass moons Naming Subsatellite Regular moons Trojan moons

Moons of Saturn
Listed in approximately increasing distance from Saturn
Ring shepherds	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus Pandora
Co-orbitals	Epimetheus Janus
G Ring	Aegaeon
Alkyonides	Methone Anthe Pallene
Inner large (with trojans)	Mimas Enceladus Tethys Telesto Calypso Dione Helene Polydeuces
Outer large	Rhea Titan Hyperion Iapetus
Inuit group (8)	S/2019 S 1 Kiviuq Ijiraq Paaliaq Saturn LX S/2004 S 31 Tarqeq Siarnaq
Norse group (46)	Phoebe Skathi S/2004 S 37 S/2007 S 2 Skoll S/2004 S 13 (?) Hyrrokkin Greip Mundilfari S/2006 S 1 S/2007 S 3 (?) Saturn LIV Bergelmir Narvi Jarnsaxa S/2004 S 17 (?) Suttungr Saturn LIX Hati S/2004 S 12 Bestla Farbauti Thrymr Saturn LV Saturn LXI Aegir Saturn LVII S/2004 S 7 (?) Saturn LXII Saturn LVI S/2004 S 28 Saturn LXV Kari Saturn LXVI S/2006 S 3 Fenrir Surtur Loge Ymir S/2004 S 21 S/2004 S 39 S/2004 S 36 Saturn LXIII Saturn LXIV Fornjot Saturn LVIII
Gallic group (4)	Albiorix Bebhionn Erriapus Tarvos
Prograde outer satellites	S/2004 S 24
Rings of Saturn Cassini–Huygens Themis Chiron S/2004 S 6 S/2004 S 4 S/2004 S 3 In fiction

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