star crossword puzzle

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Across
  1. 2. a giant glowing cloud of gas and dust
  2. 4. a bright yellow giant that is actually a system
  3. 5. an object that orbits a larger celestial body
  4. 6. The North star
  5. 8. the thing that is in the sky at night that is small
  6. 12. The galaxy that contains out solar system
  7. 14. the distance that light travels in one Earth year
  8. 18. The closest major spiral Galaxy to our own Milky Way
  9. 19. What earth does around the sun
  10. 20. The ____ space telescope is a space based obserbaory launched by NASA in 1990
  11. 22. an imaginary patter of stars in the night sky that form recognizable shapes
  12. 23. The second brightest star
  13. 24. The thing that is holding us on earth
  14. 25. The ultradian cycle, your brain's natural rhythm of alertness focus and rest
  15. 26. An astronomical body compact that its gravity prevents aanything
  16. 27. a bluish white star that was historically used as the base line
Down
  1. 1. a massive artificial satellite called ISS
  2. 3. The __ of and object
  3. 7. The brightest star in the night sky
  4. 9. A highly luminous blue supergiant
  5. 10. The most abundant chemical element in the universe
  6. 11. in space we are a floating ___
  7. 13. A massive doughnut shaped region of icy bodies and dwarf planets
  8. 15. The closest star to our solar system
  9. 16. The tendency of objects to resist changes in their current state of motion
  10. 17. The planet we are on right now
  11. 21. a robotic space probe launched by NASA on sep.5 1977