How are temperature and color related for a star?Group of answer choicesthe hottest stars are bluethe hottest stars are redthe coolest stars are yellowThe coolest stars are ultraviolet
Question
How are temperature and color related for a star?Group of answer choicesthe hottest stars are bluethe hottest stars are redthe coolest stars are yellowThe coolest stars are ultraviolet
Solution
The hottest stars are blue and the coolest stars are red. This is because the color of a star is determined by its temperature. The hottest stars, with temperatures of over 25,000 Kelvin, emit most of their radiation in the ultraviolet part of the spectrum and appear blue. On the other hand, the coolest stars, with temperatures of less than 3,500 Kelvin, emit most of their radiation in the infrared part of the spectrum and appear red. Stars with intermediate temperatures, such as our Sun, appear yellow or white.
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