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

Question

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

Quizplus · Accepted Answer

The Answer of 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

Suppose That, When the Stars in a Particular Open Star