SSppeeccttrraaHow do we know

what elements are in stars???

How to see a spectrum

Emission and Absorption

How they come to be

Visible Solar Spectrum

• Dark lines are absorption lines from a number of elements!

Emission spectra lines UV

• 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

DisclaimerAloha

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