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The Solar System

The Solar System. The Sun and the Celestial Bodies. Sun. Typical medium-sized star Radiation produced by nuclear fusion. Solar System. Ten planets and their satellites Asteroids Comets Meteoroids Interplanetary dust & gas. Major Planets. Inner planets Mercury, Venus, Earth and Mars

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The Solar System

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  1. The Solar System The Sun and the Celestial Bodies

  2. Sun • Typical medium-sized star • Radiation produced by nuclear fusion

  3. Solar System • Ten planets and their satellites • Asteroids • Comets • Meteoroids • Interplanetary dust & gas

  4. Major Planets • Inner planets • Mercury, Venus, Earth and Mars • Outer Planets • Jupiter, Saturn, Uranus, Neptune, Pluto, and Quaoar

  5. Major Planets • Inner planets • small, rock and iron • Outer Planets • mainly hydrogen, helium and ice (Pluto*)

  6. Movement of Planets • Elliptical orbits around the sun • Counterclockwise direction around the sun

  7. Discoveries of the Planets • Mercury – Unknown • Venus – Unknown • Mars – Unknown • Jupiter – Unknown • Saturn – Unknown • Uranus – 1781 • Neptune – 1846 • Pluto – 1930 • Quaoar - 2002

  8. Quaoar, The Newest Planet • Identified on June 4, 2002 • 800 miles in diameter • Almost perfectly circular 285-year orbit • About 6.3 billion km (4 billion miles) from the sun • Known by astronomers as 2002LM60

  9. Origin • Debate continues!

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