In a typical H-R diagram, stars are graphed by these two characteristics:
Correct answer: A. Temperature and luminosity
- A. Temperature and luminosity
- B. Luminosity and distance
- C. Distance and temperature
- D. Size and distance
Explanation
An H-R diagram compares a star’s luminosity or absolute brightness with its surface temperature, usually shown with temperature decreasing from left to right. Distance and size are not its defining axes.
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