Kalyke

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Kalyke
Discovery
Discovered byScott S. Sheppard
Discovery date2000
Designations
Designation
Jupiter XXIII
Pronunciation/ˈkælɪk/[1]
Named after
Καλύκη Kalykē
S/2000 J 2
AdjectivesKalykean /kælɪˈkən/
Orbital characteristics[2]
23583000 km
Eccentricity0.245
−743.0 days
116.3°
Inclination165.2°
38.7°
216.6°
Satellite ofJupiter
GroupCarme group
Physical characteristics
Mean diameter
5 km
21.8

Kalyke /ˈkælɪk/, also known as Jupiter XXIII, 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 2000, and given the temporary designation S/2000 J 2.[3][4]

Kalyke is about 5.2 kilometres in diameter, and orbits Jupiter at an average distance of 23,181,000 km in 721.021 days, at an inclination of 166° to the ecliptic (165° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2140.

It was named in October 2002 after the Greek mythological figure Kalyke or Calyce.[5]

It 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°.

References

  1. ^ as 'Calyce' in Noah Webster (1884) A Practical Dictionary of the English Language
  2. ^ S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
  3. ^ IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
  4. ^ MPEC 2001-A28: S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 2001 January 5 (discovery and ephemeris)
  5. ^ IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)