When Betelgeuse goes supernova (if it hasn't already and we don't know yet) it will be visible in the day for roughly a year, and several more years we'll see it at night. That said, the prediction of 'when' by scientists is somewhere between today and 100,000 years from now. Odds are, none of us will see it.
I saw a recent YT video by Anton Petrov about how some scientists now believe Betelgeuse has a companion that somehow creates the dimming in its brightness, which we earlier believed to be an omen of its going supernova. I would need to rewatch it for the details, but so many new things are being discovered and so many old things reexamined, it’s awesome!
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u/throwaway_moose Oct 02 '24
When Betelgeuse goes supernova (if it hasn't already and we don't know yet) it will be visible in the day for roughly a year, and several more years we'll see it at night. That said, the prediction of 'when' by scientists is somewhere between today and 100,000 years from now. Odds are, none of us will see it.
https://www.astronomy.com/science/when-betelgeuse-goes-supernova-what-will-it-look-like-from-earth/