Cepheids as Cosmology Tools

NASA/JPL-Caltech2012-10-03

NASA
Washington, DC, United States

This graph illustrates the Cepheid period-luminosity relationship, used to calculate the size, age and expansion rate of the universe. The data shown are from NASA Spitzer Space Telescope which has made the most precise measurements yet.

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Details

Title: Cepheids as Cosmology Tools
Creator: NASA/JPL-Caltech
Date Created: 2012-10-03
Rights: JPL

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