What two stellar properties does the Hertzsprung-Russell diagram map against each other?
Answer
Intrinsic brightness against surface temperature
The H-R diagram plots intrinsic brightness (luminosity) against surface temperature. The position of a star on the chart is determined by these two factors.
Related Questions
What two stellar properties does the Hertzsprung-Russell diagram map against each other?On the H-R diagram, where are the coolest stars generally located?What physical characteristic allows Red Giants and Red Supergiants to be luminous despite having low surface temperatures?Which spectral types generally correspond to coolness on the main sequence of the H-R diagram?What specific region of the H-R diagram is occupied by Red Giants and Red Supergiants?What is the primary characteristic that defines the position of Red Dwarfs on the H-R diagram?What is the estimated surface temperature range for Red Giants and Red Supergiants?Why are Red Giants relatively rare compared to main-sequence stars?What spectral class predominantly identifies the Red Dwarfs?Due to $L
Arr T^4$, where does most of the radiation from very cool stars like Red Dwarfs primarily fall on the electromagnetic spectrum?What stellar characteristic dictates the position of stars along the main sequence band?