The Solar system

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Across
  1. 2. Earth's twin
  2. 6. Dwarf planet
  3. 7. huge system of billions of stars,clouds of dust and gases
  4. 8. eighth planet of solarsystem
  5. 9. Twinkling celestial body
Down
  1. 1. Natural satellite of the Earth
  2. 3. Blue planet
  3. 4. centre of the solar system
  4. 5. Other name for North star
  5. 7. Shape of the Earth