Homework 8: Due October 24

1. Go to this web page:
   Properties of Planetary Nebulae
   Complete part C1 by clicking on the links, and then clicking on the images.
2. What does granulation tell us about the structure of the Sun?
3. Clearly, we did not go and dig into the Sun to find out about the interior. How do astronomers know what's going on inside?
4. Why are neutrinos important to astronomers?