Sun and Stars

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Across
  1. 2. center of the sun
  2. 3. a very large star of high luminosity and low surface temperature
  3. 4. a spot or patch appearing from time to time on the sun's surface
  4. 6. a rapidly spinning neutron star that emits pulses of radio and optical energy
  5. 10. coronal gas that gets thrown into space from the sun
  6. 15. an object so massive and dense that even light cannot escape its gravity
  7. 17. a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons
Down
  1. 1. a large cloud of gas and dust;region in space where stars are born
  2. 2. Thin layer of the sun thatglows a reddish color during eclipses
  3. 4. a very large star that is even brighter than a giant, often despite being relatively cool.
  4. 5. a large celestial body that is composed of gas and that emits light
  5. 7. a star that suddenly becomes brighter
  6. 8. the location on the H-R diagram where most stars lie
  7. 9. Nebula a cloud of gas that forms around a dying star
  8. 10. Region of the suns interior between the radiative zone and the photosphere
  9. 11. zone of the suns interior thats between the core an convective zone
  10. 12. an explosive release of eneergy that comes from the sun
  11. 13. The outermost layer of the suns atmoshpere
  12. 14. a small, hot, dim star that is the leftover center of an old sunlike star
  13. 16. Visible surface of the sun
  14. 18. a star that explodes and blows itself apart