Hertzsprung–Russell diagram

Hertzsprung–Russell diagram is a plot of luminosity versus effective temperature for a population of stars. Depending on the usage, the star's absolute magnitude may be substituted for luminosity, and its color index or spectral type for the temperature. Depending on their mass and composition, single stars follow specific tracks across this chart over the course of their evolution. Hence, knowing a star's mass and metallicity allows the age to be estimated. Stars of similar types are also found grouped together in specific regions of the chart, including the main sequence, red giant, and white dwarf stars.

Zurück zur Liste