Jupiter

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Jupiter
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Telescopic View
Spacecraft image
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Basic Data on Jupiter
Jupiter is the largest of the Jovian
planets Distance from sun 5.2 A.U. Orbital
Period 11.9 years Diameter 11.2 D? Surface
Gravity 2.54 g Temperature (Cloud Tops) -110
C Rotation period ( Equatorial) 9.84 hours
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Jupiter actually rotates differentially the
equator rotates faster than the poles
Because Jupiter rotates so quickly, it is
noticeably oblate.
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Zones and Belts of Jupiter Zones Bright bands
of High Pressure Belts Dark bands of Low Pressure
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Atmospheric bands and winds on Jupiter
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Wind shear between Zones and Belts
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The Great Red Spot
High-pressure Anti-cyclone. Has lasted at
least 350 years.
Earth to same scale
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Notice Counter-clockwise rotation of the Great
Red Spot. This indicates this system is an
anti-cyclone (high pressure system)
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The distinctive colors of the clouds of Jupiter
may be due to either organic compounds
or sulfur compounds
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The Galileo spacecraft until recently was
Orbiting Jupiter. It launched a probe into
the atmosphere of Jupiter.
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Cloud layers on Jupiter
Ammonia ice
Ammonium Hydrosulfide
Water Ice
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Jupiter has a ring system, like Saturn, although
much less extensive. It was discovered only by
the Voyager spacecraft and is extremely difficult
to observe from Earth. One reason for this is
that the ring
material is very dark.
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Interior structure of the two gas
giants, Jupiter and Saturn
Liquid metallic hydrogen core rapid
rotation leads to a very strong magnetic field.
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The Magnetic Field of Jupiter 19000X stronger
than Earths
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Aurora Borealis on Jupiter
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Radio Emission from Jupiter
Jupiter emits strongly in the radio, at two
characteristic wavelengths Decimetric (a few
tenths of a meter) radio emission Decametric
(tens of meters) radio emission
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Jupiters Decimetric Radiation is caused by
Synchrotron Radiation due to trapped particles
in the radiation belts.
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Jupiters Decametric Radiation is due to
lightning in the atmosphere of Jupiter, and the
interaction of Jupiters magnetic field with
the moon Io.
Lightning on Jupiter
Plasma torus associated with Io