Aitne (moon)

One of the smallest of Jupiter's moons

Aitne

Discovery images of Aitne by the Canada-France-Hawaii Telescope in December 2001

Discovery[1]
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

[edit]

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

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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 (27)|

* Euporie
* Jupiter LV
* Eupheme
* S/2021 J 3
* Jupiter LII
* Jupiter LIV
* Mneme
* Euanthe
* S/2003 J 16
* Harpalyke
* Orthosie
* Helike
* S/2021 J 2
* Praxidike
* Jupiter LXIV
* S/2021 J 1
* S/2003 J 12
* Jupiter LXVIII
* Thelxinoe
* Thyone
* S/2003 J 2
* S/2022 J 3
* Ananke
* Iocaste
* S/2017 J 10
* Hermippe
* Jupiter LXX

Carme group (31)|

* S/2016 J 3
* S/2022 J 1
* Jupiter LXIX
* Pasithee
* S/2021 J 6
* S/2003 J 24
* Chaldene
* Jupiter LXIII
* Isonoe
* S/2017 J 11
* Kallichore
* S/2021 J 4
* Erinome
* Kale
* Eirene
* Aitne
* Eukelade
* S/2022 J 2
* Arche
* Taygete
* Jupiter LXXII
* Carme
* Herse
* Jupiter LXI
* Jupiter LI
* S/2003 J 9
* Jupiter LXVI
* Kalyke
* S/2003 J 10
* S/2018 J 3
* S/2021 J 5

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

* Category

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