Universe and Stars

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