Thelxinoe (moon)

Thelxinoe
Discovery
Discovered by	Scott S. Sheppard et al.
Discovery date	2003
Designations
Designation	Jupiter XLII
Pronunciation	/θɛlkˈsɪnoʊ.iː/
Named after	Θελξινόη Thelxĭnoē
Alternative names	S/2003 J 22
Adjectives	Thelxinoean /ˌθɛlksɪnoʊˈiːən/
Orbital characteristics
Semi-major axis	21162000 km
Eccentricity	0.221
Orbital period (sidereal)	−628.1 days
Mean anomaly	194.0°
Inclination	151.4°
Longitude of ascending node	206.2°
Argument of perihelion	179.8°
Satellite of	Jupiter
Group	Ananke group
Physical characteristics
Mean diameter	2 km
Apparent magnitude	23.5

Thelxinoe /θɛlkˈsɪnoʊ.iː/, also known as Jupiter XLII, is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2004 from pictures taken in 2003, and originally received the temporary designation S/2003 J 22.^[3]^[4]

Thelxinoe is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 20,454 Mm in 597.607 days, at an inclination of 151° to the ecliptic (153° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2685.

It was named in March 2005 after Thelxinoe, one of the four original Muses according to some Greek writers, and a daughter of Zeus (Jupiter) by Mnemosyne.^[5]

Thelxinoe belongs to the Ananke group, retrograde irregular moons that orbit Jupiter between 19.3 and 22.7 Gm, at inclinations of roughly 150°.

References

^ Noah Webster (1884) A Practical Dictionary of the English Language
^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
^ Daniel W. E. Green (January 25, 2004). "IAUC 8276: S/2003 J 22". International Astronomical Union.
^ Brian G. Marsden (January 24, 2004). "MPEC 2004-B41: S/2003 J 22". International Astronomical Union Minor Planet Center.
^ Daniel W. E. Green (March 30, 2005). "IAUC 8502: Satellites of Jupiter". International Astronomical Union.

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

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

[3] Daniel W. E. Green (January 25, 2004). "IAUC 8276: S/2003 J 22". International Astronomical Union.

[4] Brian G. Marsden (January 24, 2004). "MPEC 2004-B41: S/2003 J 22". International Astronomical Union Minor Planet Center.

[5] Daniel W. E. Green (March 30, 2005). "IAUC 8502: Satellites of Jupiter". International Astronomical Union.

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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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