Exam-style question
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Which of the following best describes the Hertzsprung-Russell diagram?.
- A.A graph plotting stellar brightness against temperature.
- B.A chart showing the distance of stars from Earth.
- C.A diagram illustrating the chemical composition of stars.
- D.A map of the night sky showing star positions.
Model answer
What a good answer should say
- A graph plotting stellar brightness against temperature.
Explanation
Why this works
The Hertzsprung-Russell diagram is a key tool in astrophysics that plots stars' luminosity against their surface temperature, helping to classify stars and understand their life cycles.
Common mistake
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