Universe and Stars

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Across
  1. 5. this planet has a core and multiple layers like the sun
  2. 6. a cloud of gas and dust, stars are born/die here
  3. 8. an eruption on a sunspot
  4. 13. this layer of the sun is the layer we can see -looks yellow
  5. 14. the sun is made of helium and hydrogen, but molecules move faster than a gas
  6. 18. the hottest star color
  7. 19. the distance from the Earth to the sun is one ____
  8. 22. which wavelength is highest energy, and shortest wavelength
  9. 23. a magnetic eruption that loops back to the sunspot
  10. 25. dark cold areas on the sun
  11. 26. the core is really hot and really __________ (heavy)
  12. 27. this part of the sun rotates/spins faster than the other parts
Down
  1. 1. the innermost layer of the sun
  2. 2. The universe contains billions of ____
  3. 3. The Andromeda Galaxy contains billions of ______
  4. 4. a star's true brightness
  5. 7. our star is a yellow__________star
  6. 9. when we look up at the sky from earth, we see a star's ____magnitude
  7. 10. this layer of the sun moves hot plasm up and cold plasma down
  8. 11. the outermost layer of the sun
  9. 12. which wavelength has the lowest energy and longest wavelength
  10. 15. the distance it takes light to travel in one year
  11. 16. space rock
  12. 17. to find a star's true brightness, we need its apparent brightness and ____
  13. 20. this wavelength lets us see through gas/dust of nebulas
  14. 21. space rock made of ice, usually contains a tail of fire
  15. 24. this wavelength lets us see the temperature of stars
  16. 28. the coldest star color