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Is there any way you can determine if Betelgeuse has gone supernova earlier this month?
Paigecoal
The only way we'll ever know if Betelgeuse has "gone supernova" is when we see it. Of course, by the time we see it, the event will actually have happened some 640 years earlier, because that's how long its light takes to reach our eyes. Despite being only about 10 million years old (young, by stellar standards,) Betelgeuse is very late in its life cycle. Astronomers estimate in has about a million years left, maximum. Of course, it may already have experienced its supernova; we just don't know yet because when we see Betelgeuse, we're seeing it as it appeared in approximately the year 1375.
Wiki User
∙ 8y ago
Wiki User
∙ 14y agoNo. Betelgeuse is located 427 light-years distant from us. If it
explodes today, we'll know it when we see it, in 427 years.
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