To Do	To Answer
Read about the life cycle of stars	Who was Annie Jump Cannon and why is she important to the study of stars? What does an "HR Diagram" show? Sketch it in your notes.
Watch the video	How do stars differ from each other? How were stars first classified? How are stars classified based on their spectra? How did Annie Jump Cannon contribute to the field of astronomy? How can someone remember "OBAFGKM"? How is the mass of a star related to it's temperature? What is the classification code for the Sun? Describe the HR Diagram. (more on this next week!) What does the future hold for our Sun?