What Characteristic of a Star Cluster Is Used to Determine

question 16

Multiple Choice

What characteristic of a star cluster is used to determine its age?

• A) the chemical composition of stars in the cluster
• B) the luminosity of the faintest stars in the cluster
• C) the color of the main-sequence turnoff in the cluster
• D) the total number of stars in the cluster
• E) the apparent diameter of the cluster

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