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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. |
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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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Astronomy News |
Sky and telescopes |
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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Astronomy picture of the day's
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Court
will decide if NASA checks can continue
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