1. SpectraSpectraSpectraSpectra How do we know what elements are in stars???

2. How to see a spectrum

3. Emission and Absorption

4. How they come to be

5. Visible Solar Spectrum Dark lines are absorption lines from a number of elements!

6. Emission spectra lines UV

8. Visible Spectrum of the hot gases in a star-forming region, Omega nebula (M17). The nebula produces a complex spectrum of bright and dark lines – Emission and Absorption

14. Disclaimer Aloha I put together these power points for use in my science classes. You may use them in your classes. Some images are public domain, some are used under the fair-use provisions of the copyright law, some are mine. Copyright is retained by the owners! Ted Brattstrom