Stars and Systems

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Across
  1. 2. to spin on an axis, like the Earth does
  2. 6. an imaginary belt in the sky with 12 divisions, each named after a constellation
  3. 10. rocky or metallic objects floating in space
  4. 11. a recognizable pattern of stars in the sky
  5. 12. our closest star
  6. 13. the not real movement but from Earth's surface it totally looks like it's moving!
  7. 15. Pluto is no longer an example of this celestial body
  8. 16. an objects real movement out in space, not visible with the human eye
  9. 17. giant balls of hot gas in space
Down
  1. 1. you might measure the diameter of the galaxy with this
  2. 3. there are only 88 of these patterns
  3. 4. a massive group of stars, like our Milky Way
  4. 5. you might use this asterism to eat a small bowl of soup
  5. 7. the path an object takes around another in space
  6. 8. a famous star pattern; you wouldn't want to meet its constellation in the woods
  7. 9. used for navigation at night
  8. 14. to move in a circular path around another object