A graph that shows the relationship between the stars absolute magnitude and temperature is what?

A graph that depicts the relationship between stars' absolute magnitude and temperature is known as the Hertzsprung-Russell (H-R) diagram. This diagram classifies stars based on their luminosity (or absolute magnitude) and surface temperature, revealing distinct groups such as main sequence stars, giants, and white dwarfs. It illustrates how temperature influences a star's brightness and helps in understanding stellar evolution.