How Do You Date a Star?

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Figuring out the age of a blinking speck in the sky is a difficult feat, especially if considering how many types of stars there are. This is where a Hertzsprung-Russell meets a gyrochronologist.

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Sources:
Interview with Eric Jensen from Swarthmore College
   • How to Tell a Star's Real Age - Harvard-Sm...  
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https://www.ucolick.org/~bolte/AY4/no...
https://iopscience.iop.org/article/10...
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https://arxiv.org/pdf/0704.3068.pdf

Image Sources:
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https://svs.gsfc.nasa.gov/13641
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https://www.loc.gov/resource/gdcwdl.w...
https://commons.wikimedia.org/wiki/Fi...
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https://www.nasa.gov/mission_pages/hu...
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