Student Exploration

Coastal Carolina University

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Student Exploration
Other • 14 pages • 2023

1. Locate the two Cepheid variables, the stars that change in brightness over time. Star A-091 is the yellow star, and star A-171 is the white star. A. Which star reaches a greater apparent brightness? ANSWER: Star A-171 is the brighter star. B. Which star takes longer to pulse? ANSWER: Star A-091 takes longer to pulse. 2. Because both stars are in the same galaxy, they are about the same distance from Earth. Based on what you see, how is the brightness of the star related ...

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