#27 Stars and Galaxies

Edit Answers
12345678910111213141516171819202122232425
Across
  1. 2. The stage of a star's life before supernova
  2. 3. A cluster of stars usually found in the arms of a galaxy
  3. 4. Type of constellation that is visible all year
  4. 6. A round of disk shaped galaxy
  5. 7. A cluster of stars usually found in the center of a galaxy
  6. 11. Type of reaction that occurs in the core of all main-sequence stars
  7. 12. The force that causes pressure inside of stars
  8. 14. The stage of a star's life before planetary nebula
  9. 15. Type of galaxy with spiraling arms and a band of stars that runs through the center
  10. 17. The first stage of every star's life
  11. 18. The kind of galaxy the Milky Way is
  12. 19. Star system with more than two stars that orbit each other
  13. 20. The stage of a star's life cycle that likely doesn't exist
  14. 22. Expanding gasses surrounding an extremely hot core of a star
  15. 25. A dead star in space whose gravity is so great, not even light can escape
Down
  1. 1. A galaxy with no defined shape
  2. 4. Fixed patterns in the night sky
  3. 5. Star system with exactly two stars that orbit each other
  4. 8. Neutron star with two beams of radiation
  5. 9. What exists in the center of a nebula just before a main-sequence star forms
  6. 10. The galaxy that we are in
  7. 13. Makes up the difference between a giant and a supergiant
  8. 16. This causes a nebula to contract
  9. 21. Collection of gas, dust, nebulae, and stars
  10. 23. An explosion stage which can happen several times in a star's life
  11. 24. Type of star created from a dense ball of neutrons