Astronomy Crossword

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Across
  1. 2. The planet with rings
  2. 3. The planet closest to the Sun
  3. 7. The distance light travels in one year
  4. 8. The name of our galaxy
  5. 11. A group of stars with a definite pattern or arrangement
  6. 14. The planet closest to Earth
  7. 15. The movement of the Earth around the Sun
  8. 16. A very small star
  9. 17. An instrument that makes distant objects look larger and closer
  10. 18. The "Red Planet"
  11. 19. The largest planet in our solar system
  12. 20. Number of stars in the Big Dipper
Down
  1. 1. A large group of stars, gas and dust
  2. 4. The spinning of the Earth on its axis
  3. 5. Another name for the North Star
  4. 6. A star's brightness is called its ______.
  5. 9. Small rocky objects that revolve around the sun, mostly in the area between Mars and Jupiter
  6. 10. A scientist who studies stars and planets
  7. 12. A mass of material with a long tail that travels around the Sun
  8. 13. A star much larger than our sun