مع السلامة إبط الجوزاء

[Haji 2003]

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The star in the constellation of Orion has been visibly dimming since late 2019, and now stands at just 36% of its normal brightness. Astronomers and experienced stargazers can easily see the difference, and it’s got them talking ... about the chance of the star becoming a supernova. 

Is the dimming associated with a change in Betelgeuse that could lead to the star “going supernova?” In that scenario, Betelgeuse’s explosion could mean it shines as bright as a full moon for a few months.

https://www.forbes.com/sites/jamiecartereurope/2020/02/14/will-betelgeuse-explode-after-unprecedented-dimming-the-giant-star-is-now-changing-shape/

[hasanhh]

Doing some reading, "The Armpit" a.k.a. Betelgiuse, has been known for varying brightness since 1836. The red giant's magnitude varies from 0.0-1.3.

Maybe it is orbiting a blackhole --an offhand guess.

[Haji 2003]

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But a team using the Very Large Telescope (VLT) in Chile says the cause was almost certainly a giant dust cloud between us and the star.

https://www.bbc.co.uk/news/science-environment-57501416

[Haji 2003]

This informative thread mentions Betelgeuse some way in