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THE SOLAR SYSTEM

THE SOLAR SYSTEM

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THE SOLAR SYSTEM

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  1. THE SOLAR SYSTEM

  2. Sanjay Mehar Directed by

  3. Objectives • To know about the solar system • To know about the different components of the solar system

  4. SUN The solar system • The solar system consist of the sun and all objects revolving around it including its nine planets, moons, asteroids, comets etc.

  5. sun moon Earth planets asteroids comet Components of the solar system • The sun • Planets • Moons • Asteroids • comets

  6. The Sun The Sun is one among the millions of stars in the sky. The Sun is closest star to the Earth. The Sun is a huge, spinning ball of luminous gas, more than a million times larger than Earth. Its energy comes from nuclear reactions in the core, where temperature reaches 15 million oc. 15*1060c

  7. Planets • The huge nine objects revolving around the Sun along definite paths are called planets. • The definite paths along which the planets revolves around the sun are called orbits. • In addition to revolution motion the planets also posses rotational motion about their axis.

  8. THE SOLAR SYSTEM Pluto Neptune Venus Mercury SUN Moon Saturn Mars Earth Uranus Jupiter

  9. Mercury Venus Earth Mars Jupiter Saturn Uranus Pluto Planets

  10. Mercury • This small, cratered planet is the closest to the Sun. • During the day its surface is a scorching 430 0c, but at night it falls to 170 0c. • A “year” on Mercury-the time it takes to orbit the sun-lasts only 88 earth days.

  11. Venus • Venus is Earth’s ugly sister. • Its size and structure are similar to earth’s, but the air is poisonous and the surface is far too hot to support life. • Venus spins around soslowly that its “day” is longer than its “year”.

  12. Earth • The earth is our home planet. • It is the only place in the universe known to support life. • Oceans of water cover two –third of the rocky surface and white clouds of water swirl through the atmosphere. • Earth has only one moon.

  13. Mars • People once thought there was life on Mars. • Like Earth, it has mountains, canyons, icy poles, and an atmosphere. • However, its surface is a barren desert . • Mars is about half as wide as Earth and has two moons.

  14. Jupiter • Jupiter is the largest planet in our solar system. • It is heavier than all other planets put together. • It is a huge globe of liquid and gas, covered by circular bands of cloud. • It has 16 moons including four bigger than Pluto.

  15. Saturn • It is almost as big as Jupiter but far lighter. • It has rings around it. • Its rings are made of million of dazzling chunks of ice. • It has 18 icy moons.

  16. Uranus • With a featureless blue surface, Uranus looks like a billiard ball. • It is four times larger than earth. • It has 15 moons.

  17. Neptune • The winds on Neptune are the fastest in the solar system. • Raging storms appear as dark spots. • Neptune is similar to Uranus. • It has eight moons.

  18. Pluto • Mysterious Pluto is too small and far away to see clearly. • It gets so little sunlight that its air freezes in winter. • Its year is 248 Earth years-a person born here would not live to be a single year old. • It has one moon.

  19. Earth Moons • An object revolving around a planet is called moon. • Different planets have different numbers of moons. • like Earth, Pluto has only one moon. • Saturn has maximum number of moons equal to 18. moon

  20. SUN Asteroid belt Asteroids • The Asteroids are small rocky objects that move in orbits between the orbits of Mars and Jupiter, numbering in thousands. • Asteroids range in size from Ceres (an asteroid) which has a diameter of 1003Km to microscopic grains.

  21. SUN Comets • Relatively small, icy celestial objects revolving around the Sun are called comets. • When a comet comes near the sun, some of the ice in the comet turns into gas and loose dust freed from the ice create a long, luminous tail that streams behind the comet. comet

  22. Summary • The solar system consist of the sun and all objects revolving around it including its nine planets, moons, asteroids, comets etc. • The huge nine objects revolving around the Sun along definite paths are called planets. • The definite paths along which the planets revolves around the sun are called orbits. • In addition to revolution motion the planets also posses rotational motion about there axis • The nine planets are-Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. • Pluto is the smallest and Jupiter is the largest planet in the solar system. • Jupiter is heavier than all other planets put together. • Mercury is the closest and Pluto is the farthest planet to the Sun. • Venus is the brightest planet in the solar system. • like Earth, Pluto has only one moon. • Saturn has maximum number of moons equal to 18. • An object revolving around a planet is called moon. • The Asteroids are small rocky objects that move in orbits between the orbits of Mars and Jupiter, numbering in thousands. • Relatively small, icy celestial objects revolving around the Sun are called comets