Stellar evolution is very important to astronomers who seek to find out the history of the universe and even though we might not see dramatic changes by watching a single star, we can use the fact that the sky contains many stars in different stages of their life cycle to study the way they evolve.

Above you see an image with stars in different stages of life. When you move the mouse over that image, you will see the names of the different parts to the left. For some groups you will also be able to see where in the Hertzsprung-Russell (H-R) diagram you can find that group. Read more about the H-R diagram here

Last modified 9th August 1999
Sarah Amandusson