Kalyke

Kalyke
	Kalyke imaged by theCanada-France-Hawaii Telescopein December 2001
Discovery
Discovered by	Scott S. Sheppard; David C. Jewitt; Yanga R. Fernandez; Eugene A. Magnier
Discovery site	Mauna Kea Observatory
Discovery date	23 November 2000
Designations
Designation	Jupiter XXIII
Pronunciation	/ˈkæləkiː/
Named after	ΚαλύκηKalykē
Alternative names	S/2000 J 2
Adjectives	Kalykean/kæləˈkiːən/
Orbital characteristics
	Epoch27 April 2019 (JD2458600.5)
Observation arc	16.34yr(5,967 days)
Semi-major axis	0.1614179AU(24,147,770 km)
Eccentricity	0.3028225
Orbital period (sidereal)	−766.61 d
Mean anomaly	63.16063°
Mean motion	0° 28m10.57s/ day
Inclination	165.93730° (toecliptic)
Longitude of ascending node	132.43876°
Argument of perihelion	323.78885°
Satellite of	Jupiter
Group	Carme group
Physical characteristics
Mean diameter	6.9±1.3 km
Albedo	0.029±0.014
Apparent magnitude	21.8
Absolute magnitude(H)	15.4

Kalyke/ˈkæləkiː/,also known asJupiter XXIII,is aretrograde irregular satelliteofJupiter.It was discovered by a team of astronomers from theUniversity of Hawaiiled byScott S. Sheppardin 2000, and given the temporary designationS/2000 J 2.^[6]^[1]

From infrared thermal measurements by theWISEspacecraft, Kalyke'salbedois measured at 2.9%, corresponding to a diameter of 6.9 kilometres.^[4]It orbits Jupiter at an average distance of 23,181,000 km in 766.61 days, at aninclinationof 166° to theecliptic(165° to Jupiter's equator), in aretrogradedirection and with aneccentricityof 0.2140.

It was named in October 2002 after the Greek mythological figure Kalyke orCalyce.^[7]

Kalyke observed by theWISEspacecraft in 2010

It belongs to theCarme group,made up of irregular retrograde moons orbiting Jupiter at a distance ranging between 23 and 24 Gm and at an inclination of about 165°. Kalyke is redder in color (B−V=0.94, V−R=0.70) than other moons of the Carme group, suggesting that it is a capturedcentaurorTNO,or a remnant of such an object that collided with the Carme group progenitor.^[8]

References

^^a ^bMPEC 2001-A28:S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 62001 January 5 (discovery and ephemeris)
^as 'Calyce' in Noah Webster (1884)A Practical Dictionary of the English Language
^^a ^b"M.P.C. 115890"(PDF).Minor Planet Circular.Minor Planet Center. 27 August 2019.
^^a ^b ^cGrav, T.; Bauer, J. M.; Mainzer, A. K.; Masiero, J. R.; Nugent, C. R.; Cutri, R. M.; et al. (August 2015). "NEOWISE: Observations of the Irregular Satellites of Jupiter and Saturn".The Astrophysical Journal.809(1): 9.arXiv:1505.07820.Bibcode:2015ApJ...809....3G.doi:10.1088/0004-637X/809/1/3.S2CID 5834661.3.
^Sheppard, Scott."Scott S. Sheppard - Jupiter Moons".Department of Terrestrial Magnetism.Carnegie Institution for Science.Retrieved26 November2020.
^IAUC 7555:Satellites of JupiterArchived2002-09-16 at theWayback Machine2001 January 5 (discovery)
^IAUC 7998:Satellites of Jupiter2002 October 22 (naming the moon)
^Grav, Tommy; Holman, M. J.; Gladman, B. J.; Aksnes, K. (2003). "Photometric survey of the irregular satellites".Icarus.166(1): 33−45.arXiv:astro-ph/0301016.Bibcode:2003Icar..166...33G.doi:10.1016/j.icarus.2003.07.005.S2CID 7793999.

[MPEC-2001-A28-1] MPEC 2001-A28:S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 62001 January 5 (discovery and ephemeris)

[2] s 'Calyce' in Noah Webster (1884)A Practical Dictionary of the English Language

[MPC115890-3] "M.P.C. 115890"(PDF).Minor Planet Circular.Minor Planet Center. 27 August 2019.

[Grav2015-4] Grav, T.; Bauer, J. M.; Mainzer, A. K.; Masiero, J. R.; Nugent, C. R.; Cutri, R. M.; et al. (August 2015). "NEOWISE: Observations of the Irregular Satellites of Jupiter and Saturn".The Astrophysical Journal.809(1): 9.arXiv:1505.07820.Bibcode:2015ApJ...809....3G.doi:10.1088/0004-637X/809/1/3.S2CID 5834661.3.

[SheppardMoons-5] Sheppard, Scott."Scott S. Sheppard - Jupiter Moons".Department of Terrestrial Magnetism.Carnegie Institution for Science.Retrieved26 November2020.

[6] IAUC 7555:Satellites of JupiterArchived2002-09-16 at theWayback Machine2001 January 5 (discovery)

[7] IAUC 7998:Satellites of Jupiter2002 October 22 (naming the moon)

[Grav2003-8] Grav, Tommy; Holman, M. J.; Gladman, B. J.; Aksnes, K. (2003). "Photometric survey of the irregular satellites".Icarus.166(1): 33−45.arXiv:astro-ph/0301016.Bibcode:2003Icar..166...33G.doi:10.1016/j.icarus.2003.07.005.S2CID 7793999.

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v t e Moons of Jupiter
Listed in increasing approximate distance from Jupiter
Inner moons	Metis Adrastea Amalthea Thebe
Galilean moons	Io Europa Ganymede Callisto
Themisto	Themisto
Himalia group(9)	Leda Ersa S/2018 J 2 Himalia Pandia Lysithea Elara S/2011 J 3 Dia
Carpo group (2)	S/2018 J 4 Carpo
Valetudo	Valetudo
Ananke group(26)	Euporie Jupiter LV Eupheme S/2021 J 3 Jupiter LII Jupiter LIV Mneme Euanthe S/2003 J 16 Harpalyke Orthosie S/2022 J 3 Helike S/2021 J 2 Praxidike Jupiter LXIV S/2021 J 1 S/2003 J 12 Jupiter LXVIII Thelxinoe Thyone S/2003 J 2 Ananke Iocaste Hermippe Jupiter LXX
Carme group(30)	S/2022 J 1 S/2022 J 2 S/2016 J 3 Pasithee Jupiter LXIX S/2021 J 6 S/2003 J 24 Chaldene Jupiter LXIII Isonoe S/2021 J 4 Kallichore Erinome Kale Eirene Aitne Eukelade Arche Taygete Jupiter LXXII Carme Herse Jupiter LXI Jupiter LI S/2003 J 9 Jupiter LXVI Kalyke S/2018 J 3 S/2021 J 5 S/2003 J 10
Pasiphae group(18)	Philophrosyne Eurydome Jupiter LVI S/2003 J 4 S/2016 J 4 Jupiter LXVII Hegemone Pasiphae Sponde Megaclite Cyllene Sinope Jupiter LIX Aoede Autonoe Callirrhoe S/2003 J 23 Kore
See also	Rings of Jupiter Jupiter's moons in fiction
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