Chaldene

Chaldene /kælˈdiːniː/, also known as Jupiter XXI, 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 10.[2][3][4]

Chaldene
Discovery
Discovered byScott Sheppard et al.
Discovery date2000
Designations
Designation
Jupiter XXI
Pronunciation/kælˈdiːniː/
Named after
Χαλδηνή Chaldēnē
S/2000 J 10
AdjectivesChaldenean /kældɪˈniːən/
Orbital characteristics [1]
23179000 km
Eccentricity0.251
−723.8 days
131.6°
Inclination165.2°
148.7°
282.5°
Satellite ofJupiter
GroupCarme group
Physical characteristics
Mean diameter
4 km
22.5

    Chaldene is about 3.8 kilometres in diameter, and orbits Jupiter at an average distance of 22,713,000 km in 699.327 days, at an inclination of 167° to the ecliptic (169° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.2916.

    It was named in October 2002 after Chaldene, the mother of Solymos by Zeus in Greek mythology.[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. S.S. Sheppard (2019), Moons of Jupiter, Carnegie Science, on line
    2. IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
    3. MPEC 2001-A29: S/2000 J 7, S/2000 J 8, S/2000 J 9, S/2000 J 10, S/2000 J 11 2001 January 15 (discovery and ephemeris)
    4. MPEC 2001-T59: S/2000 J 8, S/2000 J 9, S/2000 J 10 2001 October 15 (revised ephemeris)
    5. IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)
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