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  1. Hertzsprung–Russell diagram - Wikipedia

    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 …

  2. Hertzsprung-Russell Diagram in Astronomy

    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 …

  3. Hertzsprung-Russell diagram | Definition & Facts | Britannica

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

  4. Hertzsprung-Russell Diagram - NAAP

    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 …

  5. Chandra :: Educational Materials :: The Hertzsprung-Russell Diagram

    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 …

  6. Hertzsprung-Russell Diagram | COSMOS - Swinburne

    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, …

  7. 18.4 The H–R Diagram - Astronomy 2e | OpenStax

    Such a plot is frequently called the Hertzsprung–Russell diagram, abbreviated H–R diagram. It is one of the most important and widely used diagrams in astronomy, with applications that …

  8. What the Hertzsprung-Russell Diagram Reveals about Stars

    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 …

  9. The Hertzsprung-Russell diagram - CESAR - Cosmos

    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.

  10. The Hertzsprung-Russell Diagram | ASTRO 801: Planets, Stars, …

    During roughly the same time period, two astronomers created similar plots while investigating the relationships among the properties of stars, and today we refer to these plots as " Hertzsprung …