What Is the Approximate Age of the Star Cluster in the H-R

question 92

Multiple Choice

What is the approximate age of the star cluster in the H-R diagram below (Hint: Main-sequence stars of spectral types between A and B have core supplies of hydrogen sufficient to last about 250 million years, between A and F about 2 billion years, type G about 10 billion years, and between K and M about 30 billion years.)

• A)200 million years
• B)2 billion years
• C)10 billion years
• D)30 billion years
• E)The age of the cluster cannot be estimated from an H-R diagram of the cluster.

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