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Betelgeuse may have an unseen companion star called “Betelbuddy” that could explain its strange behavior
Betelgeuse has been in the lens of astronomers for centuries, yet it continues to surprise us. In late 2019 and early 2020, ...
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Chart of Betelgeuse brightness over time (IMAGE)
This figure shows measurements of Betelgeuse's brightness from different observatories from late 2018 to present. The blue and green points represent data from ground-based observatories.