LECTURE 18, NOVEMBER 2, 2010 ASTR 101, SECTION 2 INSTRUCTOR, JACK BRANDT [email protected] 1ASTR 101-3, FALL 2010.
Ch 30-Stars, Galaxies, and the Universe Objectives – How astronomers determine the composition and temperature of stars – Why do stars appear to move in.
Life Cycle Ppt.
Stars, Galaxies, and the Universe Section 2 Section 2: Stellar Evolution Preview Key Ideas Classifying Stars Star Formation The Main-Sequence Stage Leaving.
Chapter 12 How the Stars Shine: Cosmic Furnaces. Introduction Even though individual stars shine for a relatively long time, they are not eternal. Stars.
Chapter 30 Section 2 Handout
Thursday September 20, 2012 (The Hertzsprung - Russell Diagram; Nebulae )
Classifying Stars The Hertzsprung-Russell Diagram (H-R Diagram) – Graph plotting the surface temperatures of stars against their luminosity (total energy.
Chapter 30 Section 2 Handout Stellar Evolution. 1 Why are astronomers not able to observe the entire life of any star? Because a star typically exists.
Chapter 12
Classifying Stars
