Asked by justin
Which two characteristics are used to classify stars on the Hertzsprung-Russell diagram?
size and density
density and composition
composition and temperature
temperature and absolute brightness
All Answers 1
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temperature and absolute brightness
The Hertzsprung–Russell diagram plots a star's surface temperature (or spectral type) on the horizontal axis and its absolute brightness (luminosity or absolute magnitude) on the vertical axis.
The Hertzsprung–Russell diagram plots a star's surface temperature (or spectral type) on the horizontal axis and its absolute brightness (luminosity or absolute magnitude) on the vertical axis.
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