The Sun and Stellar Classification

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Across
  1. 4. twisted magnetic field lines and release huge amounts of plasma
  2. 9. the Sun's marbled pattern
  3. 11. area of concentrated magnetic field lines
  4. 12. upper layer, transparent
  5. 13. where hydrogen fusion happens
  6. 14. active zone energy carried toward the surface by radiation
  7. 15. square the farther a star is from Earth the dimmer it looks
Down
  1. 1. a measure of brightness of a star
  2. 2. amount of light a star emits
  3. 3. magnetic loops above sunspots, can carry plasma
  4. 5. middle layer, transparent
  5. 6. twisted magnetic field lines relax and release huge amounts of x-rays
  6. 7. lowest layer, emits visible light, what we see
  7. 8. the actual brightness of a star
  8. 10. zone energy carried toward the surface by convection