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=== [[/Europa|Europa]] ===
Europa tiene un diámetro de 3.121,6 km y es 10% más pequeña que nuestra Luna. Está formada por silicatos y tiene una capa hielo de entre 10 a 30 km de espesor. Esta capa de hielo tiene grandes rajaduras y muy pocos cráteres. Desde la Tierra se ve como una mar de hielo. Existe agua líquida debado de la capa de hielo hasta 100 km bajo la superficie. Existen también grandes manchas en la superficie. En la mitología romana, Europa fue cortejada por Júpiter en la forma de un toro.
[[Image:PIA04866 modest.jpg|thumb|200px|left|Jupiter as seen by the space probe "Cassini". This is the most detailed color portrait of Jupiter ever assembled.]]▼
=== [[/Ganymede|Ganymede]] ===▼
▲[[Image:PIA04866 modest.jpg|thumb|200px|left|
Ganymede is 5262.4 km across, making it 380 km wider than Mercury. It is Jupiter's largest moon and the largest moon in the Solar System. It had '''plate tectonics''' like Earth. There are older darker regions and newer areas with grooves where the plates moved. Newer craters have bright rays around them from material thrown up by impacts. Older craters look flat and faded because the icy surface does not hold the shape of the crater as well as rock does over long periods of time. Ganymede may have an iron and sulfur core with a silicate '''mantle''' and an icy shell. It may be like Io except with a layer of ice on it. In Roman mythology Ganymede was a beautiful young man who Jupiter kidnapped and made cupbearer to the gods on Mt. Olympus.
=== [[/
Callisto is 4820.6 km across, about the same size as Mercury. It has many craters. Like craters on Ganymede, the older craters had faded. The largest crater is ''Valhalla''. It has a bright center 600 km across with rings around it up to 3000 km across. Callisto is made of silicates and ice. There is a 200 km thick icy '''crust''' with a liquid water sea under it. In Roman mythology Callisto was turned into a bear by Jupiter's jealous wife Juno. Later Jupiter placed her in the stars as The Great Bear.
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The other moons are tiny ones in several groups outside the orbits of the major moons, there is a small moon, Themisto and four groups of little moons that orbit very far from Jupiter.
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El día en Júpiter dura aproximadamente 10 horas terrestres. Es necesario decir aproximadamente porque Júpiter rota a diferentes velocidades dependiendo su centro. Esto es causado por el hecho que la mayor parte de los gases en Júpiter está en constante movimiento y alguna veces van en sentidos contrarios. Se han hecho algunos esfuerzos para determinar la velocidad de rotación del núcleo rocos de Júpiter, pero debido a los campos magnéticos de Júpiter y la cantidad de ondas de radio emitidas por su atmósfera esto no ha sido posible.
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[[Image:Great Red Spot From Voyager 1.jpg|thumb|200px|left|
[[Image:Hubble Spies Jupiter Eclipses.jpg|thumb|200px|right|
Un año en Júpiter equivale a 4.335 días en la tierra, lo que sería 11,87 años.
Un año de Júpiter es igual a los cuatro décimos (o dos quintos) de un año de Saturno. Lo que significa que cada dos años de Saturno, Júpiter ha completado cinco órbitas completas alrededor del Sol. Eso significa que después de 59 años, Saturno y Júpiter estarán en la misma posición. Cuando las órbitas de dos planetas son
A Jupiter year is about equal to four-tenths (or two-fifths) of a Saturn year. Thus after every two Saturn years, Jupiter has completed five full orbits about the Sun. So after 59 years, Saturn and Jupiter will be back in nearly the same position. When the orbits of two planets are simple ratios of each other like this, it is called a '''resonance'''.<br clear=all>
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== Who is it named after? ==
[[Image:Statue_of_Zeus.jpg|thumb|left|125px|
Jupiter is named after the chief of the Roman gods, also called Zeus in ancient Greece. It was so named because of the planet's enormous size, which dominates all the others.
[[Wikichicos/Sistema Solar/Saturno|Siguiente tema: Saturno]]
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