Astronomers Confirm Betelgeuse's Hidden Companion Star

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Source: Phys.org
Astronomers Confirm Betelgeuse's Hidden Companion Star
Photo: Phys.org
TL;DR Summary

Astronomers using the Gemini North telescope's 'Alopeke instrument have directly detected a close-in blue-white companion star orbiting Betelgeuse, explaining its six-year brightness variability and providing new insights into the life and future death of this red supergiant star.

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