THUG STARS

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Across
  1. 5. Spectra /different type of wave
  2. 9. Brightness /closer so it looks brighter
Down
  1. 1. /How bright a star actually is
  2. 2. /Like how many waves per second
  3. 3. /Method of distance or just distance
  4. 4. /Length of a wave
  5. 6. /Length of light
  6. 7. /image within stars
  7. 8. /Highest point