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Universe and Solar System

Universe and Solar System
  • The vast surrounding space is called Universe. It Incorporates everything that exists, the stars, planets, satellite as well as our earth and all the objects on it.
  • Light year and Parsec are the units of measuring distances in the Universe.
  • One Light year is the distance travelled by light in one year. 1 Light Year = 9.46 × 1012 kilometers.
  • The nearest star to the earth ‘Alpha Centuari’ is about 4.3 light years away from the earth.
  • Parsec is an astronomical unit of distance which is equal to 3.26 light years, 1 Parsec = 3.26 light years.
  • The science dealing with the nature and origin of the Universe is known as Cosmology.
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