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Suppose That, When the Stars in a Particular Open Star

Question 49

Multiple Choice

Suppose that, when the stars in a particular open star cluster are plotted in an H-R diagram, the luminosity of stars at the turnoff point is about 5 times the luminosity of the Sun. Approximately what is the age of this cluster? (See Figure 19-15 of Universe, 11th ed.) ​
Suppose that, when the stars in a particular open star cluster are plotted in an H-R diagram, the luminosity of stars at the turnoff point is about 5 times the luminosity of the Sun. Approximately what is the age of this cluster? (See Figure 19-15 of Universe, 11th ed.) ​ ​ A) 100 million years B) 1 billion years C) 500 million years D) 4 billion years ​


A) 100 million years
B) 1 billion years
C) 500 million years
D) 4 billion years

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