Download Outer planets

Outer planets
By, Ms Vriksha
~for educational purposes only~
Outer planets
• Gas giants
• Many moons
• In between the asteroid belt and Kuiper belt
Jupiter
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Named after Roman God-Greek Zeus
Largest planet in the Solar System
Atmosphere is mostly hydrogen and helium
At least 63 moons
In 1610 Galileo- 1st to see 4 moons of Jupiter
using a telescope.
Moons of Jupiter
• Io- more active volcanoes than any other body
in the solar system
• Europa- frozen crust, possibly liquid ocean
underneath
• Ganymede- largest moon in the Solar system
• Callisto- more craters than any object in the
Solar System
Saturn
• Named after Roman God of agriculture- Greek
Cronos
• Gas giant with rings around it
• At least 47 moons
• Most of the atmosphere is hydrogen and helium
• Small mass despite large size
• Voyager space probe studied the rings- size
range: tiny grains to bulldogs
Uranus
• Discovered in 1781 by William Herschel
• Gas giant- H, He, and methane- liquid core
• So cold- liquid methane (makes it look bluegreen)
• At least 27 moons
• Many dark rings (hard to see)
• Rotates on its side
• Only planet named after Greek God- Ouranos
(god of sky)
Neptune
• Named after Roman God of the sea- Greek
Poseidon
• Discovered in 1846
• Smallest gas giant- could hold about 60 earths
• Large orbit-100yrs to orbit the Sun
• At least 13 moons- Triton (largest and coldest
in solar system)
• Bands of clouds and storms-great dark spot
Pluto
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Discovered in 1930 by Clyde Tombaugh
About the same size as our Moon
Declared dwarf planet in 2006
Moons- Charon, Nix, Styx, Hydra
Odd orbit- tilted
Named after Roman God of the underworldGreek Hades
Other Dwarf Planets
• Eris (UB 313) beyond Pluto
• Ceres (in our asteroid belt)
Coming Soon: Organisms
~ for educational purposes only~
A presentation by Ms. Vriksha