Anajia 5th

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Across
  1. 1. the actual brightness of an object such as a star
  2. 3. a measure on how bright a star would be if it were seen from a standard distance
  3. 5. space and all the matter and energy in it
  4. 6. the brightness of a star seen from earth
  5. 7. the distance that light travels in a year; about 9.46 trillion kilometers
  6. 10. a small hot dim star that is the left over center of an old sun like star
  7. 12. a gigantic explosion in which a massive star collapses and throws its outer layers into space
Down
  1. 2. a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons
  2. 4. all of the frequencies or wavelengths of electromagnetic radiation
  3. 8. a large cloud of gas and dust in interstellar space; region where stars are born
  4. 9. a collection of stars,dust, and gas bound together by gravity
  5. 11. a graph that shows the relationship between a stars surface temperature and absolute magnitude