Multiple Choice
The brightest main- sequence star in a cluster has a temperature of 10,000 K and a luminosity about 100 times greater than the sun. What is the approximate age of the cluster?
A) About 107 years
B) About 1011 years
C) About 109 years
D) This cannot be answered using the HR diagram.
Correct Answer:

Verified
Correct Answer:
Verified
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