Reach for the stars

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Across
  1. 3. cycle of star shows the stages of birth and death of stars; two different paths according to original mass of star.
  2. 4. A big star in the sky; closest star to Earth
  3. 9. a fixed luminous point in the night sky that is a large, remote incandescent body like the sun.
  4. 10. stars the hottest stars
  5. 11. a group of stars forming a recognizable pattern
Down
  1. 1. Star Smallest of all stars
  2. 2. Brightness The actual brightness of a star
  3. 5. cloud of gas and dust; where stars & planets are born
  4. 6. stars medium in temperature
  5. 7. Collection of stars, gas, and dust
  6. 8. Giants A star that expands and is late in its life