How does the surface temperature of a star relate to the peak wavelength of its emitted light?

Answer

Hotter stars appear blue, while cooler ones appear reddish.

The peak wavelength observed in the emitted radiation directly corresponds to the star’s surface temperature; this relationship dictates whether the star appears blue (hotter) or reddish (cooler).

How does the surface temperature of a star relate to the peak wavelength of its emitted light?
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