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Statistics of Universe

  1. The Sun came into existence about 4.5 billion years ago.
  2. The universe came into existence about 10-20 billion years ago.
  3. There are thousands of millions of galaxies.
  4. Abell is the farthest located galaxy which is about 13,230 million light years away.
  5. Diameter of Milky Way is about 10light years.
  6. The Solar System revolves around the center of the Milky Way at a speed of 285 km/s and completes one revolution in 224×106 years.
  7. Andromeda Nebula is the closest galaxy to the Milky Way and is 6.8 × 105 light years away.
  8. A constellation is a group of stars. There are about 88 different constellations in the Universe.
  9. Sun’s mass comprises of Hydrogen (71%), Helium (26.5 %) and other elements (2.5%).
  10. Core of the Sun is a huge furnace which has a temperature of 36 million Fahrenheit. It converts Hydrogen to Helium at a rate of 600 million tons/ second.
  11. The Sunspots are patches of gas which are cooler than the gas around them.  These occur when lines of magnetic forces break through the Sun’s surface thus preventing some of the heat from reaching that part of the surface of the Sun.
  12. Age of Earth is about 4.55 billion years.
  13. Jupiter is the largest planet of the Solar System.
  14. Venus is the hottest planet of the Solar System.
  15. Mercury is the fastest planet of Solar System.
  16. Mercury and Venus has no moons.
  17. Jupiter has 63 moons, Saturn has 56 moons, Uranus has 27 moons and Neptune has 13 moons.
  18. Asteroids are 10,000 small bodies which are circling around the Sun.

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