Life Cycle of a Star-TEKS 8.9A

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Across
  1. 1. The brightness of a celestial object
  2. 5. A small very dense star that is typically the size of a planet.
  3. 6. A cloud of gas and dust in outer space
  4. 9. A change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle
  5. 10. A graph that plots the luminosity or temperature of stars
  6. 11. A super large star that is even bigger than a giant
  7. 12. Short for nuclear fusion
Down
  1. 2. The Galaxy we are located in
  2. 3. A Star of great size and luminosity compared to the ordinary stars of the main sequence
  3. 4. A system of millions or billions of stars
  4. 7. A theoretical stellar remnant; cooled to the point where it no longer emits visible light
  5. 8. All existing matter and space considered as a whole