Supernovae

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Across
  1. 4. A supernova with a few Hydrogen lines and no Silicone lines
  2. 6. Elements made from Hydrogen or Oxygen
  3. 8. The fusion of two or more nucleai
  4. 9. A large and cool star
  5. 10. The radiation radiated by a star
  6. 12. A supernova with no Hydrogen lines but with Silicone lines
  7. 13. A small star burning at high temperatures.
Down
  1. 1. An explosion of a Star
  2. 2. A very large and cool star
  3. 3. A supernova with a lot of Hydrogen lines
  4. 5. A supernova with a little bit of Hydrogen lines and no Silicone
  5. 7. The youngest stars in space
  6. 11. A supernova with little to no Hydrogen lines