Exam-style question
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What is the significance of a negative distance modulus?.
- A.The star is closer than 10 parsecs.
- B.The star is farther than 10 parsecs.
- C.The star has a higher luminosity.
- D.The star is a red giant.
Model answer
What a good answer should say
- The star is closer than 10 parsecs.
Explanation
Why this works
A negative distance modulus indicates that the apparent magnitude is brighter than the absolute magnitude, suggesting that the star is located within 10 parsecs of Earth.
Common mistake
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