4-15-13 Quiz

Vinnie Caringella

Astronomy

4-15-13

Quiz

1. A high-mass star lives a short life, rapidly fusing its core hydrogen into helium via the CNO cycle.

2. They create the elements through helium capture.

3. When gravity overcomes degeneracy pressure in the iron core, the core collapses into a ball of neutrons and the star explodes in a super nova.

4. Stars born with masses less than 8M Sun follow life stages similar to those of our Sun

5. Stars in close binary systems can exchange mass with each other, altering their life histories.

6. February 23, 1987.

7. southern hemisphere.

8. The Chinese.

9 Supernova 1054 exploded.

10. YES!