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#Betelgeuse is so huge that astronomers can map its surface! This sequence shows 5 years of bright & dark churning on the red giant star (+ more great info in the thread below).
For context, Betelgeuse is about 1,000 times as wide as the Sun, and 100,000 times as wide as the Earth. eso.org/public/images/…
@ESO The derived maps of #Betelgeuse look a lot like computer simulations of the surface of a red giant star by Bern Freytag. For now, this is the closest we can get to seeing a red giant up close. astro.uu.se/~bf/movie/dst3…
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