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leb
A telescope or binoculars is all you need for observation of the Jovian system, the four great moons IO, Europe, Ganymedes and Gallisto . The Great Red Spot on Jupiter, an eye shaped cloud, that varies between 24,000 Km and 50,000 Km in length in the South Tropical zone in The South Equatorial Belt . Jupiter its diameter is 142, 200 Km which is about one tenth of that of the Sun . Jupiter's atmosphere is not much deeper  than the atmosphere of the Earth , beneath it lies a Sea of liquid hydrogen about 24,000 Km or 15,000 miles deep. jupik
   
Jupiter and the other gas planets have high velocity winds which are confined in wide bands of latitude. The winds blow in opposite directions in adjacent bands. Jupiter is one of the most popular planets for observation with a telescope. The planet Jupiter is not a rocky world like the planet Earth, Jupiter is a huge ball of liquid hydrogen. Jupiter is more a Sun like composition than it is like the planet earth.  
Jupiter is more a Sun like composition than it is like the planet earth.The temperatures in Jupiter's atmosphere are very cold ranging from -130°C at the top of the clouds to 30°C about 70km below.
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The names of all of Jupiter's satellites come from mythological lovers of Jupiter, except Amalthea who was his nurse. Io, the closest of the four large moons to Jupiter, is the most fantastic. Because of tidal forces of Jupiter and the other moons the surface moves in and out by some 100 metres. This generates a lot of heat which causes a peculiar form of vulcanism in which volcanoes emit fountains of sur magma. Several of these volcanoes were seen in eruption by the Voyager probes. Jupiter’s rapid spin rate combined with its core of metallic hydrogen gives the planet an extremely strong magnetic field.

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