Exam-style question
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How is the temperature axis on the Hertzsprung-Russell diagram typically measured?.
- A.In Kelvin
- B.In Celsius
- C.In Fahrenheit
- D.In Joules
Model answer
What a good answer should say
- In Kelvin
Explanation
Why this works
The temperature axis is measured in Kelvin, which is the standard unit for thermodynamic temperature. This indicates that higher temperatures correspond to more energetic stars, suggesting that temperature is a critical factor in stellar classification.
Thus, the use of Kelvin allows for accurate comparisons of stellar temperatures.
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