The Hertzsprung Russell Diagram
The Hertzsprung Russell Diagram. Hertzsprung-Russell diagram, in astronomy, graph in which the absolute magnitudes (intrinsic brightness) of stars are plotted against their spectral types. If you look carefully at stars in the sky, you'll see that they aren't all the same color.
If you plot the brightness versus color, or spectral type, of stars you get a scatter plot - these quantities are not The H-R diagram has played a crucial role in developing our understanding of stellar structure and evolution.
The axes are labeled in Kelvin (degrees Celsius above absolute zero) for effective temperature and.
A major focus of astronomy during the. Astronomers use the Hertzsprung-Russell diagram to trace the evolutionary stage of a star. The Hertzsprung-Russell diagram (HR diagram) is one of the most important tools in the study of stellar evolution.
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