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  • 20-01-2017
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What is a H-R diagram

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Katelynn24
Katelynn24 Katelynn24
  • 20-01-2017
An H-R diagram or known as "The Hertzsprung Diagram" is a graphical tool that astronomers use to classify stars according to their luminosity, spectral type, color, temperature, and evolutionary stage. 
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