Monday, October 24, 2011

Amazing Facts about Stars

Here are some of the interesting and amazing facts about the stars. 
  • There are more stars in this universe than all of the grains of sand on earth.
  • The stars can be seen from the bottom of a  well even in day light.
  • The Sun is a star, and is made of 70% Hydrogen, 28% helium and 2% metals.  The diameter of Sun is 1,390,000 Kilo meters.
  • The distance between Earth and Sun is about 1,50,000,000 Kilo meters but it is not constant.
  • The Stars with strong gravity try to become smaller and smaller and finally turn into black holes.
  • The stars come in different colors.  The hot stars give blue light and the cool stars give red light.
  • All the stars in the Milky Way galaxy revolve around the center of this galaxy once every 200 million years.
  • There are nearly 250 billion stars in our galaxy and it is believed that there are 100 billion galaxies in this universe.
  • A Comet's tail always points away from the sun.
  • A galaxy of a typical size, with about 100 billion suns produces less energy than a single Quasar.
  • A Pulsar is a small star made up of neutrons so densely packed together that if one pulsar of a size of a silver dollar landed on earth, would weight approximately 100 million tons.
  • The Star 'Alpha Herculis' is 25 times larger than the circumference described by earth's revolution around the sun.

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