Betelgeuse Has A CompanionStar - Astronomers See It For First Time
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MSN
Betelgeuse Has A CompanionStar - Astronomers See It For First Time
The companion star of Betelgeuse, seen for the first time by the Gemini North Telescope. "This discovery answers the millennia-old question of why this famous star experiences a roughly six-year-long periodic change in its brightness," according to NOIRLab. Credit: International Gemini Observatory/NOIRLab/NSF/AURA/E. Slawik/ESO/L. Calçada/T ...
5 months ago
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Betelgeuse is one of the brightest and closest stars in our night sky. 🌟 But last fall, astronomers noticed the star dimming dramatically. Ultraviolet observations from Hubble suggest that the unexpected dimming was probably caused by a large amount of superhot material ejected into space. The material cooled and formed a dust cloud that blocked the starlight coming from about a quarter of Betelgeuse's surface! Learn more: https://go.nasa.gov/3amX22k Illustration credit: NASA, ESA, and E. Wheat
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