Kiviuq (moon)

Kiviuq
	Kiviuq imaged by the Canada-France-Hawaii Telescope in September 2000
Discovery
Discovered by	J. J. Kavelaars et al.
Discovery date	18 November 2000
Designations
Designation	Saturn XXIV
Pronunciation	/ˈkɪvi.ʌk/
Alternative names	S/2000 S 5
Adjectives	Kiviupian, Kiviuqian
Orbital characteristics
	Epoch 2000 Feb. 26.00
Semi-major axis	11.111 Gm
Eccentricity	0.3288
Orbital period	449.22 d ; (1.23 yr)
Inclination	45.71
Satellite of	Saturn
Group	Inuit group
Physical characteristics
Mean diameter	17+50%; −30% km
Rotation period	21.97±0.16 h
Albedo	0.04 assumed
Spectral type	B−V=0.87 ; R−V=0.66/0.48; D-type

Kiviuq is a prograde irregular satellite of Saturn. It was discovered by J. J. Kavelaars^[9] in 2000, and given the temporary designation S/2000 S 5.^[10]^[11] It was named after Kiviuq, a hero of Inuit mythology.^[12]

Kiviuq is about 16–17 km in diameter, and orbits Saturn at an average distance of 11.1 million kilometers in 450 days. It is a member of the Inuit group of irregular satellites. It is light red, and the Kiviupian (Kiviuqan)^[2] infrared spectrum is very similar to the Inuit-group satellites Siarnaq and Paaliaq, supporting the thesis of a possible common origin of the Inuit group in the break-up of a larger body.^[8]^[13]

Kiviuq is believed to be in Kozai resonance, cyclically reducing its orbital inclination while increasing the eccentricity and vice versa.^[14]

The light curve amplitude of Kiviuq is large, varying in brightness by over 2 magnitudes. The large amplitude of Kiviuq suggests that it has an elongated shape, and may be a possible contact binary.^[4]

Exploration[]

On 30 August 2010, the ISS camera of the Cassini–Huygens spacecraft took light-curve data from a distance of 9.3 million km. With these data, the rotation period was measured to 21 hours and 49 minutes.^[5]

References[]

^ Discovery Circumstances (JPL)
^ Jump up to: ^a ^b The genitive form of Kiviuq is Kiviup. Thus the adjectival form could be absolutive Kiviuqian or genitive Kiviupian, parallel to nominative Venusian and genitive Venerian for Venus. See Inuktitut morphology
^ Mean orbital parameters from JPL
^ Jump up to: ^a ^b ^c Denk, T.; Mottola, S. (2019). Cassini Observations of Saturn's Irregular Moons (PDF). 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute.
^ Jump up to: ^a ^b T. Denk, S. Mottola, et al. (2011): Rotation Periods of Irregular Satellites of Saturn. EPSC/DPS conference 2011, Nantes (France), abstract 1452.
^ Scott Sheppard pages
^ Grav, T.; Holman, M. J.; Gladman, B. J.; Aksnes, K.; Photometric survey of the irregular satellites, Icarus, 166 (2003), pp. 33–45
^ Jump up to: ^a ^b ^c Grav, T.; and Bauer, J.; A deeper look at the colors of Saturnian irregular satellites
^ Kavelaars, J. J., et al. The discovery of faint irregular satellites of Uranus Icarus 169 (2004), 474.
^ IAUC 7521: S/2000 S 5, S/2000 S 6 November 18, 2000 (discovery)
^ MPEC 2000-Y14: S/2000 S 3, S/2000 S 4, S/2000 S 5, S/2000 S 6, S/2000 S 10 December 19, 2000 (discovery and ephemeris)
^ IAUC 8177: Satellites of Jupiter, Saturn, Uranus August 8, 2003 (naming the moon)
^ Gladman, B. J.; Nicholson, P. D.; Burns, J. A.; Kavelaars, J. J.; Marsden, B. G.; Holman, M. J.; Grav, T.; Hergenrother, C. W.; Petit, J.-M.; ; and ; Discovery of 12 satellites of Saturn exhibiting orbital clustering, Nature, 412 (July 12. 2001), pp. 163–166
^ ; and Burns, J. A.; On the Secular Behavior of Irregular Satellites, The Astronomical Journal, Vol. 128 (2004), pp. 2518–2541

Ephemeris from IAU-MPC NSES

External links[]

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David Jewitt pages

[Discoverers_JPL-1] Discovery Circumstances (JPL)

[adj-2] Jump up to: ^a ^b The genitive form of Kiviuq is Kiviup. Thus the adjectival form could be absolutive Kiviuqian or genitive Kiviupian, parallel to nominative Venusian and genitive Venerian for Venus. See Inuktitut morphology

[3] Mean orbital parameters from JPL

[LPSC2654-4] Jump up to: ^a ^b ^c Denk, T.; Mottola, S. (2019). Cassini Observations of Saturn's Irregular Moons (PDF). 50th Lunar and Planetary Science Conference. Lunar and Planetary Institute.

[DenkMottola2011-5] Jump up to: ^a ^b T. Denk, S. Mottola, et al. (2011): Rotation Periods of Irregular Satellites of Saturn. EPSC/DPS conference 2011, Nantes (France), abstract 1452.

[Sheppard-6] Scott Sheppard pages

[Grav2003-7] Grav, T.; Holman, M. J.; Gladman, B. J.; Aksnes, K.; Photometric survey of the irregular satellites, Icarus, 166 (2003), pp. 33–45

[Grav2006-8] Jump up to: ^a ^b ^c Grav, T.; and Bauer, J.; A deeper look at the colors of Saturnian irregular satellites

[9] Kavelaars, J. J., et al. The discovery of faint irregular satellites of Uranus Icarus 169 (2004), 474.

[10] IAUC 7521: S/2000 S 5, S/2000 S 6 November 18, 2000 (discovery)

[11] MPEC 2000-Y14: S/2000 S 3, S/2000 S 4, S/2000 S 5, S/2000 S 6, S/2000 S 10 December 19, 2000 (discovery and ephemeris)

[12] IAUC 8177: Satellites of Jupiter, Saturn, Uranus August 8, 2003 (naming the moon)

[Gladman2001-13] Gladman, B. J.; Nicholson, P. D.; Burns, J. A.; Kavelaars, J. J.; Marsden, B. G.; Holman, M. J.; Grav, T.; Hergenrother, C. W.; Petit, J.-M.; ; and ; Discovery of 12 satellites of Saturn exhibiting orbital clustering, Nature, 412 (July 12. 2001), pp. 163–166

[Cuk2004-14] ; and Burns, J. A.; On the Secular Behavior of Irregular Satellites, The Astronomical Journal, Vol. 128 (2004), pp. 2518–2541

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hide v t Moons of Saturn
Listed in approximately increasing distance from Saturn as of epoch JD 2459200.5.
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 (7)	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 Hyrrokkin Greip Mundilfari S/2004 S 13 (?) S/2006 S 1 S/2007 S 3 (?) Suttungr Saturn LIV Jarnsaxa Narvi Bergelmir Hati S/2004 S 17 (?) S/2004 S 12 (?) Saturn LIX Farbauti Thrymr Bestla S/2004 S 7 (?) Aegir Saturn LXI Saturn LV Saturn LVII Saturn LXII Saturn LVI S/2006 S 3 Saturn LXV Kari S/2004 S 28 Loge Saturn LXVI Fenrir Ymir Surtur Saturn LXIII S/2004 S 21 S/2004 S 39 S/2004 S 36 Fornjot Saturn LXIV 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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