+The Hertzsprung-Russell Diagram (HR Diagram) plots the [Luminosity](/wiki/luminosity) of [Stars](/wiki/stars) against their surface temperature. This fundamental tool reveals the life stages of stars, organizing them into distinct groups across their journey from birth to death.
+## See also
+- [Stellar Evolution](/wiki/stellar_evolution)
+- [Main Sequence](/wiki/main_sequence)
+- [White Dwarfs](/wiki/white_dwarfs)
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