Unit 3 Science Vocab space

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