unit 3 space

123456789101112
Across
  1. 2. a large cloud of gas and dust in interstellar space a region where stars are born
  2. 5. space and all the matter and energy in it
  3. 7. the actual brightness of an object such as a star
  4. 8. Diagram Hertzsprung Russell diagram a graph that shows the relationship between a star surface temperature and absolute magnitude
  5. 9. Magnitude the brightness of a star as seen from Earth
  6. 12. a collection of stars dust and gas bound together by gravity
Down
  1. 1. Spectrum all of the frequencies or wavelength of electromagnetic radiation
  2. 3. a gigantic explosion in which a massive star collapses and throws its outer layers
  3. 4. Dwarf a small hot dim star that is the leftover center of an old sun like star
  4. 6. Star a star that has collapsed under gravity to the point that the electrons and protons have smashed together to form neutrons
  5. 10. Magnitude a measure of how bright a star would be if it were seen from standard distance
  6. 11. Year the distance that light travels in a year about 9.46 trillion kilometers