The file size is 1.1 MB, Hertzsprung Russell (H-R) Diagrams, hertzsprung-Russell (H-R) Diagrams model simulates Hertzsprung-Russell (HR or H-R) diagram for groups of stars. The diagram is a scatter plot of steller luminosity vs. stellar temperature. The luminosity of stars is proportional to the star's radius squared and its temperature to the fourth power,...