Essential Cosmic Perspective
Essential Cosmic Perspective
9th Edition
ISBN: 9780135795033
Author: Bennett
Publisher: PEARSON
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Question
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Chapter 13, Problem 1VSC
To determine

The Sun’s luminosity during the subgiant stag.

Expert Solution & Answer
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Answer to Problem 1VSC

Solution:

10 Solar unit

Explanation of Solution

Introduction:

Subgiant is the phase where the star appears brighter than the normal sub sequence star in the same spectral class.

In the H-R diagram shown in the figure luminosity corresponding to Sun’s subgiant stage is 10 Solar unit.

Hence, approximate luminosity corresponding to the subgiant stage is 10 solar unit.

Conclusion:

Observing the H-R diagram shown the luminosity corresponding to the subgiant stage is 10 solar unit.

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