Slide 1Our Place in the Cosmos Lecture 11 Understanding Stars - the H-R Diagram Slide 2 Understanding Stars We saw in the last lecture that by measuring the brightness, distance…

Slide 1 Announcements Comet SWAN! Vega West Slide 2 Classifying the Stars 27 October 2006 Slide 3 Today : Stellar spectra: temperatures and compositions Are hotter stars…

Slide 1 Slide 2  Glowing ball of gas in space which generates energy through nuclear fusion in its core  Closest star to Earth is the Sun Slide 3  Most of the universe…

Slide 1 Exploring the Universe Slide 2 I.) Properties of Stars A. A. Color and Temperature 1.A star’s color indicates that temperature of its surface a. a. Hottest stars…

To the Stars and Beyond University of Wisconsin – Eau Claire Continuing Education Dr. Nathan Miller Department of Physics & Astronomy To the Stars and Beyond WELCOME…

How do stars produce energy? How do stars produce energy? Nuclear reactions 1 Project due Friday! Lab this week Assignments next week Measuring radial velocities from light…

Chapter 10 The Nature of Stars What do you think? What color are stars? Are most stars isolated from other stars, like the Sun? A starâs color reveals its surface temperature…

I.) Properties of Stars Color and Temperature A starâs color indicates that temperature of its surface Hottest stars (surface temps above 30,000K) appear blue Milder stars…

Exploring the Universe Exploring the Universe I.) Properties of Stars Color and Temperature A star’s color indicates that temperature of its surface Hottest stars (surface…

How do stars produce energy? How do stars produce energy? Nuclear reactions 1 Project due Friday! Lab this week Assignments next week Measuring radial velocities from light…