Iocaste (moon): Difference between revisions

Iocaste
Discovery
Discovered by	Scott S. Sheppard
Discovery date	November 23, 2000
Designations
Alternative names	Jupiter XXIV
Adjectives	Ionian
Orbital characteristics
Periapsis	16,696,393 km (0.111 608 AU)
Apoapsis	25,847,607 km (0.172 780 AU)
Mean orbit radius	21,272,000 km (0.142 194 AU)
Eccentricity	0.2874
Satellite of	Jupiter
Physical characteristics
Mean radius	2.6 km
Surface area	84.95 km2 (0.082 Earths)
Volume	74 km3 (6.8×10−11 Earths)
Mass	1.9483×1014 kg (3.26×10−11 Earths)
Mean density	2.6 g/cm3
Surface gravity	0.002 m/s2 (0.0002 g)
Escape velocity	11 km/h

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Iocaste (/aɪoʊˈkæstiː/ eye-o-KAS-tee; Greek: Ιοκάστη), also known as Jupiter XXIV, 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 3.^[2]^[3]

Iocaste orbits Jupiter at an average distance of 20,723 million kilometers in 609.427 days, at an inclination of 147° to the ecliptic (146° to Jupiter's equator) with an eccentricity of 0.2874.

It was named in October 2002 after Jocasta,^[4] the mother/wife of Oedipus in Greek mythology.

Iocaste belongs to the Ananke group, believed to be the remnants of a break-up of a captured heliocentric asteroid.^[5]^[6]

The satellite is about 5 kilometres in diameter^[7] and appears grey (colour indices B−V=0.63, R−V=0.36), similar to C-type asteroids.^[8]

References

^ ^a ^b "Iocaste: By the Numbers". NASA. Retrieved March 29, 2015.
^ Daniel W. E. Green (January 5, 2001). "Satellites of Jupiter". International Astronomical Union Central Bureau for Astronomical Telegrams.
^ Brian G. Marsden (January 5, 2001). "S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6". International Astronomical Union Minor Planet Center.
^ Daniel W. E. Green (October 22, 2002). "Comet P/2002 T5 (Linear)". International Astronomical Union Central Bureau for Astronomical Telegrams.
^ Sheppard, S. S.; Jewitt, D. C.; "An Abundant Population of Small Irregular Satellites Around Jupiter" Archived August 13, 2006, at the Wayback Machine, Nature, Vol. 423 (May 2003), pp. 261–263
^ Nesvorný, D.; Alvarellos, J. L. A.; Dones, L.; and Levison, H. F.; "Orbital and Collisional Evolution of the Irregular Satellites", The Astronomical Journal, Vol. 126 (2003), pp. 398–429^{[dead link]}
^ Sheppard, S. S.; Jewitt, D. C.; Porco, C. C.; "Jupiter's Outer Satellites and Trojans" Archived June 14, 2007, at the Wayback Machine, in Jupiter: The Planet, Satellites and Magnetosphere, edited by Fran Bagenal, Timothy E. Dowling, and William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, ISBN 0-521-81808-7, 2004, pp. 263–280
^ Grav, T.; Holman, M. J.; Gladman, B. J.; and Aksnes, K.; "Photometric survey of the irregular satellites", Icarus, Vol. 166 (2003), pp. 33–45

@@ Line 33: / Line 33: @@
 Iocaste belongs to the [[Ananke group]], believed to be the remnants of a break-up of a captured heliocentric asteroid.<ref name="SheppardJewitt2003">Sheppard, S. S.; [[David C. Jewitt|Jewitt, D. C.]]; [http://www.ifa.hawaii.edu/~jewitt/papers/JSATS/SJ2003.pdf "An Abundant Population of Small Irregular Satellites Around Jupiter"] {{webarchive |url=https://web.archive.org/web/20060813000000/http://www.ifa.hawaii.edu/~jewitt/papers/JSATS/SJ2003.pdf |date=August 13, 2006 }}, ''Nature,'' Vol. 423 (May 2003), pp. 261–263</ref><ref name="Nesvorny2003">[[David Nesvorný|Nesvorný, D.]]; [[Jose L. A. Alvarellos|Alvarellos, J. L. A.]]; [[Luke Dones|Dones, L.]]; and [[Harold F. Levison|Levison, H. F.]]; [http://www.journals.uchicago.edu/AJ/journal/issues/v126n1/202528/202528.web.pdf "Orbital and Collisional Evolution of the Irregular Satellites"], ''The Astronomical Journal'', Vol. 126 (2003), pp. 398–429{{dead link|date=April 2016}}</ref>
-The satellite is about 5 kilometres in diameter<ref name="SheppardJewittPorco2004">Sheppard, S. S.; Jewitt, D. C.; [[Carolyn C. Porco|Porco, C. C.]]; [http://www.ifa.hawaii.edu/~jewitt/papers/JUPITER/JSP.2003.pdf "Jupiter's Outer Satellites and Trojans"], in ''Jupiter: The Planet, Satellites and Magnetosphere'', edited by Fran Bagenal, Timothy E. Dowling, and William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, ISBN 0-521-81808-7, 2004, pp. 263–280</ref> and appears grey ([[color index|colour indices]] B−V=0.63, R−V=0.36), similar to [[C-type asteroid]]s.<ref name="Grav2003">[[Tommy Grav|Grav, T.]]; [[Matthew J. Holman|Holman, M. J.]]; [[Brett J. Gladman|Gladman, B. J.]]; and [[Kaare Aksnes|Aksnes, K.]]; [http://arxiv.org/abs/astro-ph/0301016 "Photometric survey of the irregular satellites"], ''Icarus'', Vol. 166 (2003), pp. 33–45</ref>
+The satellite is about 5 kilometres in diameter<ref name="SheppardJewittPorco2004">Sheppard, S. S.; Jewitt, D. C.; [[Carolyn C. Porco|Porco, C. C.]]; [http://www.ifa.hawaii.edu/~jewitt/papers/JUPITER/JSP.2003.pdf "Jupiter's Outer Satellites and Trojans"] {{webarchive|url=https://web.archive.org/web/20070614045102/http://www.ifa.hawaii.edu/~jewitt/papers/JUPITER/JSP.2003.pdf |date=June 14, 2007 }}, in ''Jupiter: The Planet, Satellites and Magnetosphere'', edited by Fran Bagenal, Timothy E. Dowling, and William B. McKinnon, Cambridge Planetary Science, Vol. 1, Cambridge, UK: Cambridge University Press, ISBN 0-521-81808-7, 2004, pp. 263–280</ref> and appears grey ([[color index|colour indices]] B−V=0.63, R−V=0.36), similar to [[C-type asteroid]]s.<ref name="Grav2003">[[Tommy Grav|Grav, T.]]; [[Matthew J. Holman|Holman, M. J.]]; [[Brett J. Gladman|Gladman, B. J.]]; and [[Kaare Aksnes|Aksnes, K.]]; [http://arxiv.org/abs/astro-ph/0301016 "Photometric survey of the irregular satellites"], ''Icarus'', Vol. 166 (2003), pp. 33–45</ref>
 ==References==

v t e Moons of Jupiter
Listed in increasing approximate distance from Jupiter
Inner moons	Metis Adrastea Amalthea Thebe
Galilean moons	Io Europa Ganymede Callisto
Themisto	Themisto
Himalia group (9)	Leda Ersa S/2018 J 2 Himalia Pandia Lysithea Elara S/2011 J 3 Dia
Carpo group (2)	S/2018 J 4 Carpo
Valetudo	Valetudo
Ananke group (26)	Euporie Jupiter LV Eupheme S/2021 J 3 Jupiter LII Jupiter LIV Mneme Euanthe S/2003 J 16 Harpalyke Orthosie S/2022 J 3 Helike S/2021 J 2 Praxidike Jupiter LXIV S/2021 J 1 S/2003 J 12 Jupiter LXVIII Thelxinoe Thyone S/2003 J 2 Ananke Iocaste Hermippe Jupiter LXX
Carme group (30)	S/2022 J 1 S/2022 J 2 S/2016 J 3 Pasithee Jupiter LXIX S/2021 J 6 S/2003 J 24 Chaldene Jupiter LXIII Isonoe S/2021 J 4 Kallichore Erinome Kale Eirene Aitne Eukelade Arche Taygete Jupiter LXXII Carme Herse Jupiter LXI Jupiter LI S/2003 J 9 Jupiter LXVI Kalyke S/2018 J 3 S/2021 J 5 S/2003 J 10
Pasiphae group (18)	Philophrosyne Eurydome Jupiter LVI S/2003 J 4 S/2016 J 4 Jupiter LXVII Hegemone Pasiphae Sponde Megaclite Cyllene Sinope Jupiter LIX Aoede Autonoe Callirrhoe S/2003 J 23 Kore
See also	Rings of Jupiter Jupiter's moons in fiction
Category

Revision as of 12:57, 12 April 2017

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