What Happens as a Star Runs Out of Hydrogen?
ES2810  Stars Like the Sun

Examine the stages a medium-sized star such as the sun goes through as it begins to run out of hydrogen in its core.

  !   Click the With Labels or Without Labels buttons to see an animation of diagrams that represent the life stages of average stars. Use the movie controls to examine different parts of the sequence and read the text associated with each phase.

5. Describe how a medium-sized star can grow as it runs out of hydrogen fuel.

6. How is the formation of a planetary nebula different from a supernova?

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