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outer planets click to hear : outer planets

Planets located beyond the asteroid belt; these are known as the gas giants.
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See outer planets in : french | spanish
50 astronomical units Uranus Neptune Kuiper belt Pluto Saturn Jupiter Sun Oort cloud 50,000 astronomical units

50 astronomical units click to hear : 50 astronomical units

Corresponds to about 50 times the Earth-Sun distance.

Uranus click to hear : Uranus

Seventh planet from the Sun, also the third largest planet; Uranus is composed mainly of rock, ice and hydrogen and features 11 rings.

Neptune click to hear : Neptune

Eighth planet from the Sun; its atmosphere, composed of hydrogen, helium and methane, gives Neptune its bluish color. Features four rings.

Kuiper belt click to hear : Kuiper belt

Circular region of the solar system about 50 astronomical units from the Sun; thought to be a repository of small icy bodies, the source of comets.

Pluto click to hear : Pluto

Discovered in 1930, it was long considered the ninth planet of the solar system. Since 2008, it has been classified as a plutoid.

Saturn click to hear : Saturn

Sixth planet from the Sun, also the second largest planet; Saturn is encircled by rings forming a band about 200,000 km in diameter.

Jupiter click to hear : Jupiter

Fifth planet from the Sun, also the largest; Jupiter is 1,330 times the size of Earth.

Sun click to hear : Sun

Star around which the planets gravitate; represents over 99.8% of the total mass of the solar system.

Oort cloud click to hear : Oort cloud

Region of space bordering the solar system about 50,000 astronomical units from the Sun; composed of billions of comets.

50,000 astronomical units click to hear : 50,000 astronomical units

Corresponds to about 50,000 times the Earth-Sun distance.