Aitne (moon)

Aitne
Discovery^[1]
Discovery images of Aitne by the Canada-France-Hawaii Telescope in December 2001
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	9 December 2001
Designations
Designation	Jupiter XXXI
Pronunciation	/ˈeɪtniː/
Named after	Αίτνη Aitnē
Alternative names	S/2001 J 11
Adjectives	Aitnean /ɛtˈniːən/^[2]^[3]
Orbital characteristics ^[4]
Semi-major axis	23231000 km
Eccentricity	0.264
Orbital period (sidereal)	−712.04 days^[5]
Mean anomaly	153.9°
Inclination	165.1°
Longitude of ascending node	24.5°
Argument of perihelion	122.2°
Satellite of	Jupiter
Group	Carme group
Physical characteristics
Mean diameter	3 km
Apparent magnitude	22.7
Absolute magnitude (H)	16.0^[5]

Aitne /ˈeɪtniː/, also known as Jupiter XXXI, is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard in 2001, and given the temporary designation S/2001 J 11.^[6]^[1] Aitne belongs to the Carme 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°.

Aitne is about 3 kilometres in diameter, and orbits Jupiter at an average distance of 22,285,000 km in 712.04 days, at an inclination of 166° to the ecliptic (164° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.393.

It was named in August 2003^[7] after Aitna or Aitne, the divine personification of Mount Etna, whose sons by Zeus (Jupiter) are the Palici, the twin Sicilian gods of geysers (other authors have them descend from Thalia and/or Hephaistos).

References

^ ^a ^b "MPEC 2002-J54: Eleven New Satellites of Jupiter". 2002. Retrieved 2020-01-11.
^ as Ætnea William Lithgow (1770) Travels and Voyages, 11th ed., p. 361
^ "Etnean". Lexico UK English Dictionary. Oxford University Press. Archived from the original on March 22, 2020.
^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
^ ^a ^b "M.P.C. 115891" (PDF). Minor Planet Circular. Minor Planet Center. 27 August 2019.
^ "Satellites of Jupiter". No. IAUC 7900. Central Bureau for Astronomical Telegrams, IAU. 2002. Retrieved 2020-01-11.
^ IAUC 8177: Satellites of Jupiter, Saturn, Uranus Archived 2008-07-09 at the Wayback Machine 2003 August (naming the moon)

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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