Our Solar System - ias.u-psud.fr · Our Solar System. 19-Dec-2002 The Solar System - C. Barban & H....

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19-Dec-2002 The Solar System - C. Barban & H. Dole 1 Our Solar System

Transcript of Our Solar System - ias.u-psud.fr · Our Solar System. 19-Dec-2002 The Solar System - C. Barban & H....

Page 1: Our Solar System - ias.u-psud.fr · Our Solar System. 19-Dec-2002 The Solar System - C. Barban & H. Dole 2 Our Solar System Composition The Sun Nine Planets Some of them have Satellites

19-Dec-2002 The Solar System - C. Barban & H. Dole 1

Our Solar System

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Our Solar SystemOur Solar SystemOur Solar SystemOur Solar System

❍Composition❑ The Sun❑ Nine Planets

❑ Some of them have Satellites❑ Some of them have Rings

❑ Many Asteroids❑ Many Comets❑ Lots of Dust

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JupiterJupiterJupiterJupiterThe largest planet, made of gas

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SaturnSaturnSaturnSaturnThe second largest planet, made of gas. Its rings are famous.

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UranusUranusUranusUranusThe green planet, made of gas. A few rings have been discovered in the 1980’s.

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NeptuneNeptuneNeptuneNeptuneThe other blue planet, made of gas. Its atmosphere surprised the astronomers.

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EarthEarthEarthEarthThe blue planet. Our planet, made of rock. It’s so far the only planet where liquid water exists.

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VenusVenusVenusVenusThe cloudy planet (or Earth’s sister). Made of rock, Venus has a huge amount of clouds.

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MarsMarsMarsMarsThe red planet, made of rock. We still don’t know if liquid water and life was there once.

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MercuryMercuryMercuryMercuryThe closest planet to the Sun. Made of rock.

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PlutoPlutoPlutoPlutoThe furthest planet to the Sun. Made of rock.

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Dust, AsteroidsDust, AsteroidsDust, AsteroidsDust, AsteroidsAsteroidsDust reflecting the Sun light:

the Zodiacal light

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CometsCometsCometsCometsHale-Bopp, 1997 from France

Hale-Bopp, 1997 from France

Hyakutake, 1996 from France