H-R diagram

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Across
  1. 2. the brightness of a star
  2. 5. the chart that shows stars luminosity/temprature
  3. 6. an explosion of which a supergiant "throws" its outer layers off
  4. 7. a cool, bright star
  5. 8. the biggest stars
  6. 9. the coolest and dimmest star
Down
  1. 1. a blue star in the main sequence that is bigger and hotter than a low mass star
  2. 3. a cloud of gas and dust that stars are created in
  3. 4. the cycle stars spend most of their life in
  4. 10. a hot, dim star that's leftover from a red giant