What color star is typically classified as Class K?

Class K stars are typically categorized as having an orange hue. This classification is based on their temperature and spectral characteristics. Stars within this class have surface temperatures ranging from about 3,500 to 5,200 Kelvin. This temperature range gives them their distinct orange color, which is a result of the spectrum of light they emit.

The classification of stars is based on their temperature and color, which is a fundamental aspect of stellar astrophysics. The spectral classification system includes various classes—O, B, A, F, G, K, and M—where each class corresponds to a specific range of temperatures and characteristic colors. Orange stars, like those in Class K, are cooler than the yellow stars of Class G, such as our Sun, and significantly cooler than blue stars classified as Class O and B.

In contrast, yellow stars are typically classified as Class G, red stars belong to Class M, and blue stars fall into the Class O or B categories. This classification helps astronomers understand the properties of stars and their lifecycle stages.