What are the two parameters plotted against each other on the Hertzsprung-Russell (H-R) diagram?

Answer

Stellar luminosity against surface temperature

The fundamental Hertzsprung-Russell diagram organizes stars by plotting their brightness (luminosity) on one axis against their surface temperature on the other.

What are the two parameters plotted against each other on the Hertzsprung-Russell (H-R) diagram?

#Videos

How Do We Measure the Ages of Stars? With Astrophysicist Ruth ...

ageastronomystarstellar evolutionstellar classificationstar age