Cyllene (moon)

Cyllene
Discovery
Discovered by	Scott S. Sheppardet al.
Discovery date	2003
Designations
Designation	Jupiter XLVIII
Pronunciation	/səˈliːniː/
Named after	ΚυλλήνηKyllēnē
Alternative names	S/2003 J 13
Adjectives	Cyllenean/sɪləˈniːən/
Orbital characteristics
Semi-major axis	24349000km
Eccentricity	0.319
Orbital period (sidereal)	−737.8 days
Inclination	149.3°
Satellite of	Jupiter
Group	Pasiphae group
Physical characteristics
Mean diameter	2 km
Apparent magnitude	23.2

Cyllene/səˈliːniː/,also known asJupiter XLVIII,is anatural satelliteofJupiter.It was discovered by a team of astronomers from theUniversity of Hawaiiled byScott S. Sheppardin 2003, receiving the temporary designationS/2003 J 13.^[5]^[6]

Cyllene is about 2 kilometres in diameter, and orbits Jupiter at an average distance of (23.4 million km) 23,396,000 km in 731.099 days (2.00 earth years), at aninclinationof 140.149° to theecliptic(139.543° to Jupiter's equator), in aretrogradedirection and with aneccentricityof 0.4116.

It was named in March 2005 afterCyllene,anaiad(streamnymph) ororead(mountain nymph) associated withMount Cyllene,Greece.^[7]She was a daughter ofZeus(Jupiter).

It belongs to thePasiphae group,irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.

References[edit]

^The adjective 'Cyllenean' is also used for Mercury,^[2]though rarely, as for that referent the form is normally 'Cyllenian'/səˈliːniən/.^[3]

^Noah Webster (1884)A Practical Dictionary of the English Language
^Thomas Chase (1882)Six books of the Æneid of Virgil(1877), p. 252
^"Cyllenian".Oxford English Dictionary(Online ed.).Oxford University Press.(Subscription orparticipating institution membershiprequired.)
^S.S. Sheppard (2019), Moons of Jupiter,Carnegie Science,on line
^IAUC 8116:Satellites of Jupiter and SaturnArchived2006-05-05 at theWayback Machine2003 April (discovery)
^MPEC 2003-G09:S/2003 J 132003 April (discovery and ephemeris)
^IAUC 8502:Satellites of Jupiter2005 March (naming the moon)

[4] The adjective 'Cyllenean' is also used for Mercury,^[2]though rarely, as for that referent the form is normally 'Cyllenian'/səˈliːniən/.^[3]

[1] Noah Webster (1884)A Practical Dictionary of the English Language

[2] Thomas Chase (1882)Six books of the Æneid of Virgil(1877), p. 252

[3] "Cyllenian".Oxford English Dictionary(Online ed.).Oxford University Press.(Subscription orparticipating institution membershiprequired.)

[5] S.S. Sheppard (2019), Moons of Jupiter,Carnegie Science,on line

[6] IAUC 8116:Satellites of Jupiter and SaturnArchived2006-05-05 at theWayback Machine2003 April (discovery)

[7] MPEC 2003-G09:S/2003 J 132003 April (discovery and ephemeris)

[8] IAUC 8502:Satellites of Jupiter2005 March (naming the moon)

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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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