Contributor NASA
This is the original paper published by Henrietta Levitt on the periods of variable stars in which she shows that there is a relationship between the period and luminosity of the variable stars. It is a required part of Discovering the Milky Way but can be used alone.
This is the original paper published by Henrietta Levitt on the periods of variable stars in which she shows that there is a relationship between the period and luminosity of the variable stars. It is a required part of Discovering the Milky Way but can be used alone.
Contributor NASA
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