In the lectures on June 10 & 12, I am departing from the syllabus by inserting a synopsis of chapters 21 and 22, which describe the later stages of evolution of stars.

Background reading in textbook:

•[21.1] pp. 433-440

•[21.4] pp. 446-450

•[21.5, through end of section “Making New Elements in Massive Stars”]

•[22.1,22.2,22.3]

•But only worry about understanding the things I actually talk about in class.

•Do not worry about understanding the H-R (Hertzprung-Russell) Diagram.