solar system

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Across
  1. 4. group of stars which seem to form a recognisable pattern in the sky
  2. 5. seventh smallest planet in solar system
  3. 6. an object that orbits around a larger one.
  4. 7. mass of rock moving around in space
  5. 9. small luminous object sky
Down
  1. 1. a star which is 425 light year away and 60000 times brighter than sun
  2. 2. astronomical unit of length equal to the distance light travels in a vacuum in one year
  3. 3. this galaxy has a diameter of 100000 light years
  4. 4. this constellation is visible from northern hemisphere
  5. 8. the star that provides light and warmth to the earth