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Transcript
The Solar System:
Jupiter...
• is the 5th planet from
the sun
• is a gas giant
• has a diameter of
142,984 km (more than
300 times bigger than
Earth and more than
twice as big as all the
rest of the planets
added together)
• is 778,330,000 km
from the sun
• has 39 known
satellites
• Jupiter was named
for the Greek god
Zeus, who was the
ruler of Mount
Olympus and king
of the gods.
Galileo’s Discovery
Using a homemade telescope,
Galileo discovered 4 moons
revolving around Jupiter in
1610. These moons are known
as the Galilean moons: Io,
Ganymede, Callisto, and
Europa. This was important
evidence that the earth was
not the center of the solar
system.
Exploration of Jupiter
• Voyager 1
• Pioneer 10
– 1st spacecraft to pass
asteroid belt
– found intense radiation
around Jupiter
• Pioneer 11
– measured solar wind,
Jupiter’s magnetic field
and atmosphere
– investigated
atmospheres and moons
– found Jupiter;s rings
• Voyager 2
– found volcanoes on Io
– found frozen crust on
Europa
• Galileo
– 1st spacecraft to orbit
a gas planet
Jupiter -has a core of
rocky material
Above the core lies the
main bulk of the planet
in the form of liquid
metallic hydrogen
• Jupiter is about 90%
hydrogen and 10%
helium
• Three distinct layers
of clouds are believed
to exist: ammonia ice,
ammonium
hydrosulfide, and a
mixture of ice and
water.
• Jupiter has high
velocity winds
• The Great Red Spot
is an oval big enough to
hold two Earths.
Rotation/Revolution
Mean distance from the Sun: 5.203 AU
(778,400,000 km/483,700,000 mi)
Length of Year: 11.86 Earth years
Rotation Period: 9.92 hours
Mean Orbital Velocity: 13.06 km/s (8.1 mi/s)
Inclination of Axis: 3.12° Diameter: 142,980
km/88,700 mi
Satellites
Io is the
third largest
moon It has
active
volcanoes.
Ganymede is the
largest moon in
the solar system.
.
Europa is the
4th largest
moon and has a
smooth frozen
crust. There
may be liquid
water under it.
Callisto is the
second largest
moon and is
almost as big
as Mercury.
Review Questions
1. Describe the composition of Jupiter.
2. Who discovered Jupiter?
3. How did Jupiter get its name?
4. What spacecraft have visited Jupiter
and what did they have discover?
Works Cited
http://www.spacegrant.hawaii.edu/class_acts/GeologyC
hart.html
http://www.solarviews.com/cap/
http://www.pantheon.org/articles/z/zeus.html
http://antwrp.gsfc.nasa.gov/apod/ap980913.html
http://solarsystem.nasa.gov/missions/jup_missns/jupp10.html
http://seds.lpl.arizona.edu/nineplanets/nineplanets/nine
planets.html