S/2004 S 17

S/2004 S 17
Discovery^[1]
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	13 December 2004
Orbital characteristics^[2]
Epoch 9 August 2022 (JD 2459800.5)
Observation arc	15.67 yr (5,725 days)
Semi-major axis	0.1326708 AU (19,847,000 km)
Eccentricity	0.1647702
Orbital period (sidereal)	–2.86 yr (–1043.92 d)
Mean anomaly	226.13753°
Mean motion	0° 20^m 41.48^s / day
Inclination	168.11825° (to ecliptic)
Longitude of ascending node	34.46812°
Argument of perihelion	186.71765°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	≈4 km^[3]
Albedo	0.04 (assumed)^[3]
Apparent magnitude	25.2^[3]
Absolute magnitude (H)	16.0^[2]

S/2004 S 17 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 4 May 2005 from observations taken between 13 December 2004 and 5 March 2005.

S/2004 S 17 is about 4 kilometres in diameter, and orbits Saturn at an average distance of 19,847,000 kilometres in about 1,044 days, at an inclination of 168.1° to the ecliptic, in a retrograde direction and with an eccentricity of 0.165.^[2]^[4]

This moon was considered lost^[5] until its recovery was announced on 12 October 2022.^[2]

References

^ Discovery Circumstances from JPL
^ ^a ^b ^c ^d "MPEC 2022-T129 : S/2004 S 17". Minor Planet Electronic Circular. Minor Planet Center. 12 October 2022. Retrieved 12 October 2022.
^ ^a ^b ^c S.S. Sheppard (2019), Moons of Saturn, Carnegie Science, on line
^ Jacobson, R.A. (2007) SAT272 (2007-06-28). "Planetary Satellite Mean Orbital Parameters". JPL/NASA. Archived from the original on 2011-08-10. Retrieved 2008-01-20.{{cite web}}: CS1 maint: numeric names: authors list (link)
^ Jacobson, B.; Brozović, M.; Gladman, B.; Alexandersen, M.; Nicholson, P. D.; Veillet, C. (28 September 2012). "Irregular Satellites of the Outer Planets: Orbital Uncertainties and Astrometric Recoveries in 2009–2011". The Astronomical Journal. 144 (5): 132. Bibcode:2012AJ....144..132J. doi:10.1088/0004-6256/144/5/132. S2CID 123117568.

Institute for Astronomy Saturn Satellite Data
Jewitt's New Satellites of Saturn page
MPEC 2005-J13: Twelve New Satellites of Saturn, 3 May 2005 (discovery and ephemeris)

v t e Saturn
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Astronomy	Delta Octantis Saturn-crossing minor planets
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Related	Fiction The Day the Earth Smiled In Saturn's Rings (2018 documentary)
Category

v t e Natural satellites of the Solar System
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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 moonlets

Ring shepherds

Other inner moons

Alkyonides

Inner large
(with trojans)

Outer large

Rhea
Titan
Hyperion
Iapetus

Inuit group (12)

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

Gallic group (7)

Albiorix
Bebhionn
S/2007 S 8
Saturn LX
Erriapus
Tarvos
S/2020 S 4

Norse group (100)

Phoebe group (3)	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/2007 S 3
S/2004 S 44
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
Beli
S/2019 S 10
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/2004 S 21
S/2019 S 18
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 moons

S/2006 S 12

S/2019 S 6

S/2004 S 24

This page was last edited on 1 March 2024, at 18:42

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References