Unit 3 vocab

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Across
  1. 2. a gigantic explosion in which a massive star collapses and throws its outer layers into space
  2. 4. a large cloud of gas and dust in intercellular space a region or stars are born
  3. 6. magnitude a measure of how brightest star would be if it were seen from standard distance
  4. 7. the actual brightness of an object such as a star
  5. 8. a collection of stars dust and gas bound together by gravity
  6. 11. star a star that has collapsed under gravity to the point that electrons and protons have smashed together to form neutrons
  7. 12. space and all other matter and energy in it
Down
  1. 1. diagram hurtzsprung Russell diagram a graph that shows the relationship between a stars surface temperature and absolute magnitude
  2. 3. spectrum all of the frequencies or wavelengths of electromagnetic
  3. 5. year the distance that travels in a year about 9.4 6,000,000,000,000 km
  4. 9. magnitude the brightness of a star as seen from earth
  5. 10. door a small hot dim star that is left over center of an old sun like star