Chaldene

Chaldene
	Chaldene imaged by the Canada-France-Hawaii Telescope in December 2001
Discovery
Discovered by	Scott S. Sheppard; David C. Jewitt; Yanga R. Fernandez; Eugene A. Magnier
Discovery site	Mauna Kea Observatory
Discovery date	23 November 2000
Designations
Designation	Jupiter XXI
Pronunciation	/kælˈdiːniː/
Named after	Χαλδηνή Chaldēnē
Alternative names	S/2000 J 10
Adjectives	Chaldenean /kældɪˈniːən/
Orbital characteristics
	Epoch 27 April 2019 (JD 2458600.5)
Observation arc	17.46 yr (6,376 days)
Semi-major axis	0.1604721 astronomical unit\|AU (24,006,280 km)
Eccentricity	0.1500864
Orbital period	–759.88 d
Mean anomaly	159.35152°
Mean motion	0° 28m 25.54s / day
Inclination	164.25379° (to ecliptic)
Longitude of ascending node	215.26817°
\|{{{apsis}}}\|helion}}	340.66981°
Satellite of	Jupiter
Group	Carme group
Physical characteristics
Mean diameter	4 km
Albedo	0.04 (assumed)
Spectral type	B–V = 0.82 ± 0.05, V–R = 0.50 ± 0.05
Apparent magnitude	22.5
Absolute magnitude (H)	16.0

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, in 2000, and given the temporary designation S/2000 J 10.^[6]^[1]^[7]

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.^[8]

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

↑ ^1.0 ^1.1 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)
↑ ^2.0 ^2.1 "M.P.C. 115890". Minor Planet Circular. Minor Planet Center. 27 August 2019. https://minorplanetcenter.net/iau/ECS/MPCArchive/2019/MPC_20190827.pdf.
↑ Graykowski, Ariel; Jewitt, David (2018-04-05). "Colors and Shapes of the Irregular Planetary Satellites" (in en). The Astronomical Journal 155 (4): 184. doi:10.3847/1538-3881/aab49b. ISSN 1538-3881. https://iopscience.iop.org/article/10.3847/1538-3881/aab49b.
↑ Sheppard, Scott. "Scott S. Sheppard – Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons. Retrieved 26 November 2020.
↑ "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. https://ssd.jpl.nasa.gov/?sat_phys_par#jupiter. Retrieved 26 November 2020.
↑ IAUC 7555: Satellites of Jupiter 2001 January 5 (discovery)
↑ MPEC 2001-T59: S/2000 J 8, S/2000 J 9, S/2000 J 10 2001 October 15 (revised ephemeris)
↑ IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)

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[MPEC-2001-A29-1] 1.0 ^1.1 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)

[MPC115890-2] 2.0 ^2.1 "M.P.C. 115890". Minor Planet Circular. Minor Planet Center. 27 August 2019. https://minorplanetcenter.net/iau/ECS/MPCArchive/2019/MPC_20190827.pdf.

[GraykowskiJewitt2018-3] Graykowski, Ariel; Jewitt, David (2018-04-05). "Colors and Shapes of the Irregular Planetary Satellites" (in en). The Astronomical Journal 155 (4): 184. doi:10.3847/1538-3881/aab49b. ISSN 1538-3881. https://iopscience.iop.org/article/10.3847/1538-3881/aab49b.

[SheppardMoons-4] Sheppard, Scott. "Scott S. Sheppard – Jupiter Moons". Department of Terrestrial Magnetism. Carnegie Institution for Science. https://sites.google.com/carnegiescience.edu/sheppard/moons/jupitermoons. Retrieved 26 November 2020.

[jpl-phys-5] "Planetary Satellite Physical Parameters". Jet Propulsion Laboratory. 19 February 2015. https://ssd.jpl.nasa.gov/?sat_phys_par#jupiter. Retrieved 26 November 2020.

[6] IAUC 7555: Satellites of Jupiter 2001 January 5 (discovery)

[7] MPEC 2001-T59: S/2000 J 8, S/2000 J 9, S/2000 J 10 2001 October 15 (revised ephemeris)

[8] IAUC 7998: Satellites of Jupiter 2002 October 22 (naming the moon)

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v t e Moons of Jupiter
Listed in approximately increasing distance from Jupiter. Provisional designations in italics.
Inner moons	Metis Adrastea Amalthea Thebe
Galilean moons	Io Europa Ganymede Callisto
Themisto group	Themisto
Himalia group	Leda Himalia Ersa Pandia Lysithea Elara Dia
Carpo group	Carpo
Valetudo group	Valetudo
Ananke group	S/2003 J 12(?) Euporie Eupheme Jupiter LV Jupiter LII Thelxinoe Euanthe Helike Orthosie Jupiter LXVIII Jupiter LIV Jupiter LXIV Iocaste S/2003 J 16(?) Praxidike Harpalyke Mneme Hermippe Thyone Jupiter LXX Ananke
Carme group	Jupiter LXXII Herse Aitne Kale Taygete Jupiter LXI Chaldene S/2003 J 10(?) Erinome Kallichore Jupiter LXVI Jupiter LXIX Kalyke Carme Jupiter LXIII Pasithee Jupiter LI Eukelade Arche Isonoe S/2003 J 9(?) Eirene
Pasiphae group	Jupiter LXVII Philophrosyne S/2003 J 23(?) Aoede Callirrhoe Eurydome Kore Cyllene Jupiter LVI Jupiter LIX S/2003 J 4(?) Pasiphae Hegemone Sinope Sponde Autonoe Megaclite S/2003 J 2(?)
Rings of Jupiter In fiction

Discovery^[1]
Chaldene imaged by the Canada-France-Hawaii Telescope in December 2001
Discovered by	Scott S. Sheppard David C. Jewitt Yanga R. Fernandez Eugene A. Magnier
Discovery site	Mauna Kea Observatory
Discovery date	23 November 2000
Designations
Designation	Jupiter XXI
Pronunciation	/kælˈdiːniː/
Named after	Χαλδηνή Chaldēnē
Alternative names	S/2000 J 10
Adjectives	Chaldenean /kældɪˈniːən/
Orbital characteristics^[2]
Epoch 27 April 2019 (JD 2458600.5)
Observation arc	17.46 yr (6,376 days)
Semi-major axis	0.1604721 astronomical unit\|AU (24,006,280 km)
Eccentricity	0.1500864
Orbital period	–759.88 d
Mean anomaly	159.35152°
Mean motion	0° 28^m 25.54^s / day
Inclination	164.25379° (to ecliptic)
Longitude of ascending node	215.26817°
\|{{{apsis}}}\|helion}}	340.66981°
Satellite of	Jupiter
Group	Carme group
Physical characteristics^[5]
Mean diameter	4 km
Albedo	0.04 (assumed)
Spectral type	B–V = 0.82 ± 0.05, V–R = 0.50 ± 0.05^[3]
Apparent magnitude	22.5^[4]
Absolute magnitude (H)	16.0^[2]

Chaldene

Topic: Astronomy

References