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Stars and Their Spectrums

Stars are the elemental factories of the universe, primarily fusing hydrogen into helium throughout most of their lives. Younger stars are abundant in hydrogen, while older ones contain more helium. Massive stars can fuse heavier elements, which are identifiable in a star's spectrum. By analyzing these spectra, astronomers can determine vital characteristics of stars, including their age, mass, and density. This knowledge enhances our understanding of star evolution and the chemical makeup of the universe.

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Stars and Their Spectrums

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  1. Stars and Their Spectrums

  2. Stars are the Element Factories of the Universe

  3. Stars fuse _________ into _________most of their lives. Stars fuse hydrogen into helium most of their lives.

  4. Younger stars are rich in hydrogen

  5. Older stars are rich in helium

  6. Massive stars are able to fuse elements heavier than helium, and these heavier elements show up in a stars spectra

  7. How can a star’s spectra tell astronomers a star’s…. age? mass? density?

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