A star of which colour can be said to be the coolest
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Explanation:
The coolest star are the red dwarf ones.
Stars are classified as per their temperature. The surface temperature of a star determines the color of it. The core temperature of these red dwarf stars are not so high as compared to their surface temperature which is seen about 3,500 Kelvin. The surface of these stars releases light which appears red to eyes.
The visual color of the star is based on its temperature. This method is known as spectral classification . The spectral classification consists of various categories such as M, K, G, F, A, B, and O. The category M belongs to the coolest stars (red dwarfs) and category O to the hottest stars.
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