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Stars and solar physics

Stars and solar physics

Home » Astronomy and space » Stars and solar physics » ‘Buddy star’ could explain Betelgeuse’s varying brightness

‘Buddy star’ could explain Betelgeuse’s varying brightness

06 Nov 2024 Isabelle Dumé
Star chart showing Betelgeuse's position in the constellation Orion
Any buddy out there? Betelgeuse's position in the constellation Orion. (Courtesy: Lucy Reading-Ikkanda/Simons Foundation)
An unseen low-mass companion star may be responsible for the recently observed “Great Dimming” o

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Isabelle Dumé is a contributing editor to Physics World
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