Review For Astronomy Unit- Earn data

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Across
  1. 2. Shift in star position from Earth
  2. 6. Huge collections of stars
  3. 9. Large bodies orbiting a star
  4. 10. Small rocky bodies in space
  5. 13. Space rocks burning in Earth's atmosphere
  6. 17. One Earth-Sun distance
  7. 18. Resistance to motion change
  8. 19. Path of one object around another
  9. 20. Space rocks near Earth
Down
  1. 1. Push or pull
  2. 3. Distance light travels in a year
  3. 4. Force pulling objects together
  4. 5. Amount of matter in an object
  5. 7. Vast, empty area beyond Earth
  6. 8. Force of gravity on an object
  7. 11. Object orbiting a planet
  8. 12. Icy bodies with tails in space
  9. 14. Massive burning ball of gas
  10. 15. Center of our solar system
  11. 16. Earth's natural satellite