The 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 and their stellar classifications or effective temperatures.

Hertzsprung-Russell diagram, in astronomy, graph in which the absolute magnitudes (intrinsic brightness) of stars are plotted against their spectral types (temperatures). The Sun lies near the middle of the main sequence on the diagram. Learn more about the Hertzsprung-Russell diagram in …

The Hertzsprung-Russell diagram the various stages of stellar evolution. By far the most prominent feature is the main sequence (grey), which runs from the upper left (hot, luminous stars) to the bottom right (cool, faint stars) of the diagram. The giant branch and supergiant stars lie above the main sequence, and white dwarfs are found below it.

Astronomers use the Hertzsprung-Russell diagram to trace the evolutionary stage of a star. The Hertzsprung diagram where the evolution of sun-like stars is traced. Credits:ESO. This is a plot of temperature versus brightness, and as stars are born, live and die, they move in regular patterns around the Hertzsprung-Rusell diagram.

The HR Diagram is linked to The Natures of the Stars and to Spectra. Return to STARS. The stellar astronomer's greatest tool is the HR diagram and its variants. The classical HR diagram, first constructed in 1914 by Henry Norris Russell (to which was added the work of Ejnar Hertzsprung), is a plot of absolute visual magnitude against spectral ...

The resulting diagram was named after the two discovering astronomers, Ejnar Hertzsprung of Denmark and Henry Norris Russell of America. Imagine plotting a random sampling of stars from our galaxy. The majority of these stars when plotted on an H-R diagram go down from left to right in a diagonal line.

Hertzsprung (1873–1967) and Russell (1877–1957) Figure 11.5. (a) Ejnar Hertzsprung and (b) Henry Norris Russell independently discovered the relationship between the luminosity and surface temperature of stars that is summarized in what is now called the H–R diagram.

2024年5月28日 · The Hertzsprung-Russell Diagram, or H-R Diagram, is a pivotal tool in the field of astronomy that provides a graphical representation of stars based on their luminosity, color, temperature, and evolutionary stage. Developed independently by Ejnar Hertzsprung and Henry Norris Russell in the early 20th century, this diagram has become fundamental ...

The Hertzsprung-Russell (HR) diagram is a plot of luminosity (total power output) against surface temperature, both on log scales. Since neither luminosity nor surface temperature is a directly observed quantity, real plots tend to use observable quantities that are related to

2008年11月16日 · The Hertzsprung-Russell diagram shows the relationship between different properties of stars and illustrates trends among stars. The diagram was created in 1910 by Ejnar Hertzsprung and Henry Norris Russell and represented a huge leap forward in understanding stellar evolution, or the 'lives of stars'.