+The **Hertzsprung-Russell diagram**, or H-R Diagram, is a stellar chart, plotting a star's [luminosity](/wiki/luminosity) against its effective [temperature](/wiki/temperature). This cosmic graph unveils patterns of stellar evolution, grouping stars by their age and characteristics.
+## See also
+- [Main Sequence](/wiki/main_sequence)
+- [White Dwarf](/wiki/white_dwarf)
+- [Red Giant](/wiki/red_giant)
... 1 more lines