Astronomy & Space

Why do stars appear different colors in the night sky?

AI Insight

Stars appear in different colors because of their surface temperatures. Blue stars are the hottest, with surface temperatures exceeding 30,000 Kelvin, while red stars are the coolest at around 3,000 Kelvin. White and orange stars fall in between these temperature extremes, with our Sun being a yellow-white star at approximately 5,800 Kelvin.


Stellar color provides astronomers with crucial information about a star's age, composition, and stage in its life cycle. This knowledge helps scientists understand stellar evolution and the formation of planetary systems, including conditions that might support life.


Discover why some stars shine blue, white, orange or red and what those colors tell us about the cosmos.

Source: Why do stars appear different colors in the night sky?