Concept explainers
The lifetime of main-sequences of Star A compared to the sun.
The lifetime of main-sequences of Star B compared to the sun.
The luminous of main-sequences of Star A compared to the sun.
The luminous of main-sequences of Star B compared to the sun.
Answer to Problem 6P
The lifetime of main-sequences of Star A compared to the sun is
The lifetime of main-sequences of Star B compared to the sun is
The luminous of main-sequences of Star A is
The luminous of main-sequences of Star B is
Explanation of Solution
Write the expression for the stellar life expectancies of star A.
Here,
Rewrite the above expression for luminosity of star A.
Here,
Write the expression for the stellar life expectancies of star B.
Here,
Rewrite the above expression for luminosity of star B.
Here,
Conclusion:
Substitute
Substitute
Substitute
Substitute
Therefore, the lifetime of main-sequences of Star A compared to the sun is
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Chapter 12 Solutions
Foundations of Astronomy (MindTap Course List)