K-type stars are a classification of stars that are cooler than the sun, typically exhibiting a surface temperature ranging from about 3,900 to 5,200 Kelvin. They fall within the spectral classification system and are characterized by their orange hue, which results from the lower temperatures compared to hotter stars like G-type stars. K-type stars are significant in the study of stellar evolution and the potential for hosting habitable exoplanets due to their long lifespans and stable environments.
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