If Betelgeuse Explodes, Just How Bright Will It Get?

This supergiant star is in our celestial neighborhood, and it’s threatening to go supernova. What would that look like from down here?

If Betelgeuse Explodes, Just How Bright Will It Get?
This supergiant star is in our celestial neighborhood, and it’s threatening to go supernova. What would that look like from down here?
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