The Age of a Cluster Can Be Determined by

question 106

Multiple Choice

The age of a cluster can be determined by

• A) carrying out a number count of the stars in the cluster.
• B) measuring the cluster's speed of motion relative to the Sun.
• C) determining the turnoff point on the main sequence of the cluster's Hertzsprung-Russell diagram.
• D) observing the cluster's position in the sky with respect to the Sun.

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Definitions:

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