* Stars are hot, dense balls of gas. This gas emits light across a wide range of wavelengths, but the peak wavelength (the most intense color) depends on the star's temperature.
* Wien's Displacement Law: This law states that the peak wavelength of a blackbody's radiation is inversely proportional to its temperature. This means hotter stars emit more light at shorter wavelengths (blue and white), while cooler stars emit more light at longer wavelengths (red and orange).
* The Color Spectrum:
* Blue and white stars: These are the hottest stars, with surface temperatures exceeding 10,000 Kelvin (K).
* Yellow stars: Like our Sun, these stars have surface temperatures around 5,000-6,000 K.
* Orange and red stars: These stars are cooler, with surface temperatures ranging from 3,000 to 4,000 K.
* Red dwarf stars: These are the coolest stars, with surface temperatures below 3,000 K.
In summary, a star's color is a direct indicator of its surface temperature, with hotter stars appearing bluer and cooler stars appearing redder.
