The Hertzsprung Russell Diagram

The Hertzsprung Russell Diagram. We can express luminosity in solar units: how many times more powerful is the star than the Sun? Top: The general labeling of stars into four groups is shown.

PX144 Introduction to Astronomy: Stars : Hertzsprung ...
PX144 Introduction to Astronomy: Stars : Hertzsprung ... (Carrie Wade)
Hertzsprung-Russell diagram [for Ejnar Hertzsprung and H. HR diagrams are valuable because they reveal important information about the stars plotted on them. Below the main sequence (and slightly to the left) are the White Dwarfs.

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.

It's generally used to understand a star's age.

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What the Hertzsprung-Russell Diagram Reveals about Stars

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HR diagrams are valuable because they reveal important information about the stars plotted on them. A Hertzsprung-Russell diagram, or HR diagram, is a graph of stellar temperatures (plotted on the horizontal axis) and luminosities or brightnesses (plotted on the vertical axis). They are all challenged and a little uncomfortable with the.

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