Chaldene

Summary

Chaldene
Chaldene-Jewitt-CFHT-annotated.gif
Chaldene imaged by the Canada-France-Hawaii Telescope in December 2001
Discovery [1]
Discovered byScott S. Sheppard
David C. Jewitt
Yanga R. Fernandez
Eugene A. Magnier
Discovery siteMauna Kea Observatory
Discovery date26 November 2000
Designations
Designation
Jupiter XXI
Pronunciation/kælˈdn/
Named after
Χαλδηνή Chaldēnē
S/2000 J 10
AdjectivesChaldenean /kældɪˈnən/
Orbital characteristics[2]
Epoch 27 April 2019 (JD 2458600.5)
Observation arc17.46 yr (6,376 days)
0.1604721 AU (24,006,280 km)
Eccentricity0.1500864
–759.88 d
159.35152°
0° 28m 25.54s / day
Inclination164.25379° (to ecliptic)
215.26817°
340.66981°
Satellite ofJupiter
GroupCarme group
Physical characteristics[4]
Mean diameter
4 km
Albedo0.04 (assumed)
22.5[3]
16.0[2]

Chaldene /kælˈdn/, 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, in 2000, and given the temporary designation S/2000 J 10.[5][1][6]

Chaldene is about 3.8 kilometres in diameter, and orbits Jupiter at an average distance of 22,713,000 km in 759.88 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.[7]

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. ^ a b 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)
  2. ^ a b "M.P.C. 115890" (PDF). Minor Planet Circular. Minor Planet Center. 27 August 2019.
  3. ^ Sheppard, Scott. "Scott S. Sheppard - Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. Retrieved 26 November 2020.
  4. ^ "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. Retrieved 26 November 2020.
  5. ^ IAUC 7555: Satellites of Jupiter Archived 2002-09-16 at the Wayback Machine 2001 January 5 (discovery)
  6. ^ MPEC 2001-T59: S/2000 J 8, S/2000 J 9, S/2000 J 10 2001 October 15 (revised ephemeris)
  7. ^ IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)