| 词条 | Iocaste (moon) |
| 释义 |
| name = Iocaste | alt_names = Jupiter XXIV | adjectives = | bgcolour = #ffc0c0 | discoverer = Scott S. Sheppard David C. Jewitt Yanga R. Fernandez and Eugene Magnier | discovered = November 23, 2000 [1] | mean_orbit_radius = 21,272,000 km (0.142 194 AU) | eccentricity = 0.2874 | periapsis = 16,696,393 km (0.111 608 AU) | apoapsis = 25,847,607 km (0.172 780 AU) | avg_speed = 8,714.4 km/h | satellite_of = Jupiter | mean_radius = 2.6 km | surface_area = 84.95 km2 (0.082 Earths) | volume = 74 km3 (6.8{{e|-11}} Earths) | mass = 1.9483{{e|14}} kg (3.26{{e|-11}} Earths) | density = 2.6 g/cm3 | surface_grav = 0.002 m/s2 (0.0002 g) | escape_velocity = 11 km/h[1] }}Iocaste ({{IPAc-en|aɪ|oʊ-|ˈ|k|æ|s|t|iː}} {{respell|eye-o|KAS|tee}}; Greek: Ιοκάστη), also known as {{nowrap|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 {{nowrap|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] References1. ^1 {{cite web |url=http://solarsystem.nasa.gov/planets/iocaste/facts |title=Iocaste: By the Numbers |publisher=NASA |accessdate=2015-03-29 |archive-url=https://web.archive.org/web/20160412032542/http://solarsystem.nasa.gov/planets/iocaste/facts |archive-date=April 12, 2016 |dead-url=yes |df=mdy-all }} 2. ^{{cite web |author=Daniel W. E. Green |publisher=International Astronomical Union Central Bureau for Astronomical Telegrams |url=http://www.cbat.eps.harvard.edu/iauc/07500/07555.html |title=Satellites of Jupiter |date=January 5, 2001}} 3. ^{{cite web |author=Brian G. Marsden |url=http://www.minorplanetcenter.org/mpec/K01/K01A28.html |title=S/2000 J 2, S/2000 J 3, S/2000 J 4, S/2000 J 5, S/2000 J 6 |date=January 5, 2001|publisher=International Astronomical Union Minor Planet Center}} 4. ^{{cite web |author=Daniel W. E. Green |publisher=International Astronomical Union Central Bureau for Astronomical Telegrams |url=http://www.cbat.eps.harvard.edu/iauc/07900/07998.html |title=Comet P/2002 T5 (Linear) |date=October 22, 2002}} 5. ^Sheppard, S. S.; Jewitt, D. C.; "An Abundant Population of Small Irregular Satellites Around Jupiter" {{webarchive |url=https://web.archive.org/web/20060813235622/http://www.ifa.hawaii.edu/~jewitt/papers/JSATS/SJ2003.pdf |date=August 13, 2006 }}, Nature, Vol. 423 (May 2003), pp. 261–263 6. ^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|date=April 2016}} 7. ^Sheppard, S. S.; Jewitt, D. C.; Porco, C. C.; "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 8. ^Grav, T.; Holman, M. J.; Gladman, B. J.; and Aksnes, K.; [https://arxiv.org/abs/astro-ph/0301016 "Photometric survey of the irregular satellites"], Icarus, Vol. 166 (2003), pp. 33–45 Further reading
5 : Ananke group|Moons of Jupiter|Irregular satellites|Discoveries by Scott S. Sheppard|Astronomical objects discovered in 2000 |
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