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- Hertzsprung–Russell diagram - Wikipedia
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 | 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) The Sun lies near the middle of the main sequence on the diagram
- HR Diagram Explained - Star Color, Temperature and Luminosity
The Hertzsprung-Russell diagram, also called the HR Diagram, is a really important tool that astronomers use to show the relationship between star temperature and color against its brightness The development of this diagram was a major step toward understanding how a star evolves and changes over time
- Hertzsprung-Russell Diagram in Astronomy - Science Notes and Projects
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 magnitude), spectral type (or surface temperature), and evolutionary stage
- 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 regions on the H-R diagram and exhibit similar properties
- The Hertzsprung-Russell Diagram - Hertzsprung-Russell Diagram - NAAP
The basic H-R diagram is a temperature vs luminosity graph The temperature may be replaced or supplemented with spectral class (or color index as noted earlier) The main spectral classes in order from hottest to coolest are O, B, A, F, G, K, and M
- What the Hertzsprung-Russell Diagram Reveals about Stars - ThoughtCo
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 Russell, plots stars by temperature and brightness
- Hertzsprung-Russell Diagram | COSMOS - Swinburne
Developed independently in the early 1900s by Ejnar Hertzsprung and Henry Norris Russell, it plots the temperature of stars against their luminosity (the theoretical HR diagram), or the colour of stars (or spectral type) against their absolute magnitude (the observational HR diagram, also known as a colour-magnitude diagram)
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