Stars and their Properties

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Across
  1. 5. Total energy a star releases per second
  2. 6. Small, hot, dense stellar remnant
  3. 10. Actual light a star emits, independent of distance
  4. 11. How hot a star’s surface is
Down
  1. 1. Hydrogen turning into helium in a star’s core
  2. 2. Brightness as seen from Earth
  3. 3. Very hot, bright, massive star
  4. 4. Star property related to temperature
  5. 7. Space to a star
  6. 8. How long a star has existed
  7. 9. Very large, hot, often blue star
  8. 12. Cooler, redder star type