unit 3 space

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