unit 3 space

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