Space Unit 3 vocab

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Across
  1. 2. stars dust and gas bound together by gravity
  2. 4. Star collapses under gravity
  3. 5. Brightness of a star from standard distance
  4. 7. Brightness of star from as seen from Earth
  5. 8. space and everything in it
  6. 11. The actual brightness of a object such as a star
  7. 12. Hertzsprung-Russel diagram
Down
  1. 1. all of the frequencies or wavelengths
  2. 3. large cloud of gas and dust in space; stars are born
  3. 6. a gigantic explosion in which massive star collapses
  4. 9. Distance that light travels in a year
  5. 10. Small dim star that is left over center of older star