Constructing the Hertzsprung-Russell Diagram for Globular Star Cluster Omega Centauri

A real Hubble Space Telescope color image of the core of the globular star cluster Omega Centauri is used to construct a Hertzsprung-Russell diagram of the stellar populations in the cluster. When stars are sorted by brightness and color, they can be used to create a graph that astronomers use to trace cluster evolution.

Credit: NASA, ESA, and J. Anderson, R. van der Marel, G. Bacon, and M. Estacion (STScI)

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