A Hertzsprung–Russell diagram (abbreviated as H–R diagram, HR diagram or HRD) is a scatter plot of stars showing the relationship between the stars' absolute magnitudes or luminosities …

Apr 29, 2025 · Learn about the Hertzsprung-Russell diagram in astronomy, including what it is, how it classifies stars, and its applications.

Most stars lie on the main sequence, which extends diagonally across the H–R diagram from high temperature and high luminosity to low temperature and low luminosity.

May 6, 2025 · Stars on the main sequence of the H-R diagram are fusing hydrogen and show various brightnesses. The H-R Diagram, developed by Ejnar Hertzsprung and Henry Norris …

The H-R diagram is a scatter graph of stars – a plot of stellar absolute magnitude or luminosity versus surface temperature or stellar classification. Stages of stellar evolution occupy specific …

Several of the brightest stars are identified by name. Most stars fall on the main sequence. Following Hertzsprung and Russell, let us plot the temperature (or spectral class) of a selected …

Hertzsprung-Russell diagram, in astronomy, graph in which the absolute magnitudes (intrinsic brightness) of stars are plotted against their spectral types (temperatures).

H-R diagrams which show how a star changes or evolves during its stellar life. The H-R diagram can be used to study and understand how a star will evolve during its life cycle. Stellar …

Figure 4.6: Schematic plot of an H-R diagram with color, temperature, and spectral class all plotted on the x-axis, and luminosity and absolute magnitude plotted on the y-axis.

As you can see, stars don't land just anywhere on the H-R Diagram, but fall in one of a number of specific regions, as follows: There are also two bands of stars in the H-R diagram that are …