Class 8 Physics Stars and the Solar System Comets


  • Comets are celestial objects which revolve around the Sun in elliptical orbits with a very large period of revolution.
  • A comet appears as a bright head with a long tail, whose direction is always opposite to that of the sun
  • The tail's length always grows in size as it approaches the Sun
  • Comets appear periodically.
  • Halley's comet appears once in 76 years, the last being 1986.

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