The Average Red Giant in the Night Sky Is About

question 45

Multiple Choice

The average red giant in the night sky is about 1,000 times more luminous than the average main-sequence star. If both kinds of stars have about the same brightness, how much farther away are the red giants compared to the main-sequence stars?

• A) 32 times farther
• B) 1,000 times farther
• C) 65 times farther
• D) 5.6 times farther
• E) The red giants and main sequence stars have approximately the same distances.

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Definitions:

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