1. Describe how we can estimate the temperature of stars based on their blackbody (thermal) curve.
2. Summarize how spectra can be used to find the composition of a gas. Include in your summary the significance of each element having a unique spectrum. Be sure to include at least three key terms in your explaination. This method forms the basis for how astronomers determine the composition of stars - in other words, the stuff of which stars are made.