The picture includes some of the notes that the class took on stars and stellar spectra. Use the class-generated information to answer the questions below. Do this on your own blog, please.
1. Absorption spectra are created when a gas passes in front of an emitted photon of light. A line spectra appears when no gas is available. What type of spectra are more likely to be produced when light travels to earth?
2. Is parallax more likely to appear for closer or further stars? Why do you believe this?
3. A Cepheid variable is a star that allows us to measure distance using a period? What variable are we using for the period?
4. What is the the nuclear engine in the heart of a star, and how does it work?
5. How is magnitude different from a star's intensity? Why?
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