What physical property primarily determines the color of a star?
Answer
Surface temperature
Color serves as an indicator of the physical properties defining a star, specifically dictated by surface temperature. This relationship follows the principle of blackbody radiation, where an object emits light based on its heat. As temperature increases, the energy output rises and the peak wavelength of emitted light shifts from longer, lower-energy wavelengths toward shorter, higher-energy wavelengths, changing the visual color from red to blue.
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