The discovery of the period-luminosity relationship for variable stars allowed them to be used as standard candles.Who made this important discovery?

Question

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Henrietta Leavitt discovered the period-luminosity relationship for variable stars while working at the Harvard College Observatory in the early 1900s. This relationship allowed for variable stars, such as Cepheid variables, to be used as standard candles, which played a crucial role in determining the scale of the universe.

The Discovery of the Period-Luminosity Relationship for Variable Stars Allowed