When a Spectral-Type G2 Star Like the Sun Leaves the Main

question 33

Multiple Choice

When a spectral-type G2 star like the Sun leaves the main sequence, its

• A) luminosity and surface temperature both stay the same.
• B) luminosity and surface temperature both decrease.
• C) luminosity increases and its surface temperature decreases.
• D) luminosity and surface temperature both increase.
• E) luminosity decreases and its surface temperature increases.

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