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 and their …

Apr 29, 2025 · The Hertzsprung–Russell diagram (commonly abbreviated as H–R diagram) is a graphical tool that astronomers use to classify stars based on their luminosity (or absolute …

The NAAP HR Diagram Lab explores the Hertzsprung-Russell diagram and those areas necessary to understand the diagram such as (but not limited to) the different kinds of spectrum, spectral …

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

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 regions on the …

This Hertzsprung-Russell diagram shows a group of stars in various stages of their evolution. By far the most prominent feature is the main sequence, which runs from the upper left (hot, luminous stars) to …

The Hertzsprung–Russell diagram, or H–R diagram, is a plot of stellar luminosity against surface temperature. Most stars lie on the main sequence, which extends diagonally across the H–R diagram …

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 class. The natures …

May 6, 2025 · The Hertzsprung-Russell Diagram sorts stars by color and temperature, showing their life stages. Stars on the main sequence of the H-R diagram are fusing hydrogen and show various …

Oct 11, 2025 · Named after astronomers Ejnar Hertzsprung and Henry Norris Russell, who independently developed the diagram in the early 20th century, the HR Diagram is a fundamental …