Stars and Constellations

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Across
  1. 3. (How far light travels in a year)
  2. 6. (The spinning of Earth on its axis)
  3. 7. (Observations or measurements recorded)
  4. 9. (Someone who studies the stars)
  5. 11. (The brightness of a star)
Down
  1. 1. (A pattern of stars)
  2. 2. (The path Earth takes around the sun)
  3. 4. (A group of interacting parts)
  4. 5. (The force that pulls objects toward each other)
  5. 8. (The North Star)
  6. 10. (Information used to support a scientific claim)
  7. 12. (A huge system of stars, like the Milky Way)