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Aitne (moon)

Aitne
Discovery
Discovered byScott S. Sheppard et al.
Discovery date2001
Designations
Designation
Jupiter XXXI
Pronunciation/ˈtn/
Named after
Αίτνη Aitnē
S/2001 J 11
AdjectivesAitnean /ɛtˈnən/[1][2]
Orbital characteristics[3]
23231000 km
Eccentricity0.264
−730.2 days
153.9°
Inclination165.1°
24.5°
122.2°
Satellite ofJupiter
GroupCarme group
Physical characteristics
Mean diameter
3 km
22.7

Aitne /ˈtn/, 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, et al. in 2001, and given the temporary designation S/2001 J 11.[4][5] 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 679.641 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[6] 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

  1. ^ as Ætnea William Lithgow (1770) Travels and Voyages, 11th ed., p. 361
  2. ^ "Etnean". Lexico UK Dictionary. Oxford University Press.
  3. ^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
  4. ^ "Satellites of Jupiter" (IAUC 7900). Central Bureau for Astronomical Telegrams, IAU. 2002. Retrieved 2020-01-11.
  5. ^ "MPEC 2002-J54: Eleven New Satellites of Jupiter". 2002. Retrieved 2020-01-11.
  6. ^ IAUC 8177: Satellites of Jupiter, Saturn, Uranus Archived 2008-07-09 at the Wayback Machine 2003 August (naming the moon)