Dr. Aaron Titus | Department of Physics, High Point University
PHY1050      Astronomy of Stars, Galaxies, and the Cosmos
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Chapter 13-14

Read Chapter 13-14 from Discovering Astronomy.


WebAssign -- Chapter 13-14. Answer homework questions covering Chapter 13-14.


Almost everything we know about the universe has been learned by studying light.

As a result, it's essential for you to understand how we use light to know:

  • the composition of stars (what stars are made of)
  • the temperature of stars (how hot stars are)
  • motion of stars (how fast and in what direction stars are moving)