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Betelgeuse is a red supergiant star located in the constellation Orion that is one of the largest and brightest stars visible from Earth. It is near the end of its life cycle, having exhausted its core hydrogen fuel and begun fusing helium into heavier elements, and is believed to be the precursor to a brilliant supernova event. Astronomers have used various techniques to study Betelgeuse's surface features, temperature variations, and other properties, and in late 2019 and early 2020, it experienced an unusually significant dimming event. This has led to speculation that it might be on the verge of going supernova, and studying its eventual supernova explosion will provide valuable insight into the late stages of stellar evolution.
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constellation Orion
supergiant star
star located
brightest stars
stars visible
red supergiant
Earth
Orion
Betelgeuse
study Betelgeuse