Skrymir (moon) - Misplaced Pages

Moon of Saturn

Skrymir
Discovery
Discovered by	Sheppard et al.
Discovery date	2019
Designations
Named after	Skrýmir/Skrymir
Alternative names	Saturn LVI S/2004 S 23 S8630a
Orbital characteristics
Semi-major axis	21427000 km
Eccentricity	0.399
Orbital period (sidereal)	−1164.3 days
Inclination	177.7°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	4+50% −30% km
Apparent magnitude	24.8

Skrymir (Saturn LVI), provisionally known as S/2004 S 23, is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 7, 2019 from observations taken between December 12, 2004 and March 22, 2007. It was given its permanent designation in August 2021. On 24 August 2022, it was officially named after Útgarða-Loki (also known as Skrýmir). He is a jötunn from Norse mythology and master of illusions.

Skrymir is about 4 kilometres in diameter, and orbits Saturn at an average distance of 21.163 Gm in 1149.82 days, at an inclination of 177° to the ecliptic, in a retrograde direction and with an eccentricity of 0.373.

References

Discovery Circumstances from JPL
^ S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
^ "MPEC 2019-T129 : S/2004 S 23". minorplanetcenter.net. Retrieved 7 October 2019.
"M.P.C. 133821" (PDF). Minor Planet Center. International Astronomical Union. 10 August 2021. Retrieved 21 August 2021.
"Names Approved for 10 Small Satellites of Saturn". usgs.gov. USGS. 24 August 2022. Retrieved 30 August 2022.
"Planet and Satellite Names and Discoverers". usgs.gov. IAU WGPSN. Retrieved 30 August 2022.

Moons of Saturn

Listed in approximate increasing distance from Saturn

Ring moonlets

Ring shepherds

Other inner moons

Alkyonides

Large moons
(with trojans)

Inuit group (13)

Kiviuq subgroup	S/2019 S 1 Kiviuq S/2005 S 4 S/2020 S 1 Ijiraq
Paaliaq subgroup	Paaliaq
Siarnaq subgroup	S/2004 S 31 Tarqeq S/2019 S 14 Siarnaq S/2020 S 3 S/2019 S 6 S/2020 S 5

Gallic group (7)

Norse group (100)

Phoebe subgroup	Phoebe S/2006 S 20 S/2006 S 9

Skathi
S/2007 S 5
S/2007 S 7
S/2007 S 2
S/2004 S 37
S/2004 S 47
S/2004 S 40
S/2019 S 2
S/2019 S 3
S/2020 S 7
Skoll
S/2020 S 2
S/2019 S 4
S/2004 S 41
S/2004 S 42
Hyrrokkin
Greip
S/2004 S 13
S/2007 S 6
Mundilfari
S/2006 S 1
S/2004 S 43
S/2006 S 10
S/2019 S 5
Gridr
Bergelmir
Jarnsaxa
Narvi
Suttungr
S/2004 S 44
S/2007 S 3
S/2004 S 45
Hati
S/2004 S 17
S/2006 S 11
S/2004 S 12
Eggther
S/2006 S 13
S/2007 S 9
S/2019 S 7
S/2019 S 8
Farbauti
Thrymr
Bestla
S/2019 S 9
S/2004 S 46
Angrboda
S/2019 S 11
Aegir
S/2019 S 10
Beli
S/2019 S 12
Gerd
S/2019 S 13
S/2006 S 14
Gunnlod
S/2019 S 15
S/2020 S 6
S/2004 S 7
S/2006 S 3
S/2005 S 5
Skrymir
S/2006 S 16
S/2006 S 15
S/2004 S 28
S/2020 S 8
Alvaldi
Kari
S/2004 S 48
Geirrod
Fenrir
S/2004 S 50
S/2006 S 17
S/2004 S 49
S/2019 S 17
Surtur
S/2006 S 18
Loge
Ymir
S/2019 S 19
S/2019 S 18
S/2004 S 21
S/2004 S 39
S/2019 S 16
S/2004 S 53
S/2004 S 36
Thiazzi
S/2019 S 20
S/2006 S 19
Saturn LXIV
Fornjot
S/2004 S 51
S/2020 S 10
S/2020 S 9
Saturn LVIII
S/2019 S 21
S/2004 S 52

Outlier prograde
irregular moons

S/2006 S 12

S/2004 S 24

v t e Saturn
Outline
Geography	Dragon Storm Great White Spot Hexagon Magnetosphere Rings
Moons	S/2009 S 1 Ring moonlets Pan Daphnis Atlas Prometheus Pandora Epimetheus Janus Aegaeon Mimas Methone Anthe Pallene Enceladus Tethys Telesto Calypso Dione Helene Polydeuces Rhea Titan Hyperion Iapetus Inuit group Kiviuq Paaliaq Siarnaq Gallic group Albiorix Norse group Phoebe
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)
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