Is the blue star bigger than the sun?
The true monsters of the Universe are blue supergiant stars, like Rigel. These can be a blue star with surface temperatures of 20,000 – 50,000 Kelvin and can be 25 times larger than the Sun. Because they're so large, and burn so hot, they use up their fuel very quickly.
Join Alexa Answers
Help make Alexa smarter and share your knowledge with the worldLEARN MORE