What would happen if betelguese exploded like a supernova?
- ANDYLv 51 month agoFavorite Answer
Betelgeuse WILL explode as a supernova. Its mass is anywhere from 10 to 20 times that of the sun. What will happen? Actually nothing much because of its distance being 500 to 700 light years away from us─scientists are not quite sure of its distance. When it explodes, if not already has, we would see a bright glow in the sky nighttime and daytime for weeks.
Astronomers have been noticing a weird "behavior" of this red giant. For years they have noticed it was dimming. And while it was one the 10 brightest stars we see in the sky, it has now become one of the twenty brightest. The reason of the dimming is not clear (a variable star?) since it has been going on for the last few decades.
Betelgeuse came to be a star less than 10 million years ago; and because of its great mass it is nearing its end. So as I mentioned, it could have already exploded, and the glow will arrive to us in due time anywhere in a few days, or after a few hundred years, or it hasn't yet.
- robertoLv 64 weeks ago
the greatest skylighter in our lifetimes
day and night for days or longer
- 4 weeks ago
Say it three times and see what happens
- CliveLv 74 weeks ago
I assume you mean Betelgeuse. And what do you mean, "like a supernova"? It WILL BE a supernova eventually. And when it goes off bang, the blast of cosmic rays may well play havoc with anything electronic, and it will be the brightest star in the sky, probably visible in daylight, until it fades away. It'll certainly be world news as just about everybody will be able to see it.
And going by the Crab Nebula, which is what is left of a supernova that was visible in 1054, most likely it will leave a nebula behind with a neutron star in the middle. Which might be more visible than the Crab as it's closer.
Talking of distance, Betelgeuse is over 600 light years away, (just as well - we really don't want to be too much closer to the explosion) so it may have already happened, but less than 600 years ago so we don't know about it yet.
And astronomers will love it. There hasn't been any chance to see a supernova up close since the telescope was invented (the last reasonably close one was Tycho's Star in 1572) and nobody wants to miss the opportunity to see one with all our modern instruments. It'll be the science story of the year and probably the decade.
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- Ronald 7Lv 71 month ago
It would be brighter than the Moon for a while then fade away, but it should become a great Nebula
At 645 Light Years distant and because of the Speed of light, it would take the same amount of time for such an event to become Apparent on Earth
If it hasn't actually went Supernova in the Mean time
Studies have shown that its Diameter has been very unstable and could blow any time
At such a Distance, Earth should come to no harm
But the Supernova would be so bright that initially it could be seen in DaytimeSource(s): Betelgueuse
- 1 month ago
It's relatively close to us - about 640 light years - so, it would be very bright; bright enough to be seen during daylight hours. The Crab Nebula exploded in a similar manner Betelgeuse is expected to - and, it was seen for weeks during daylight, and it remained bright in the sky for a couple of years after that; so, probably Betelgeuse will behave in a similar manner.
- ElaineLv 71 month ago
Orion loses a shoulder.
- SkyLv 71 month ago
It would be a very bright spot in our sky, even visible during the daytime depending on what time of the year it is, and it would be a fascinating subject for astronomical observation, but that's about it as far as we're concerned. It isn't close enough to cause us any harm.
- SparkyLv 61 month ago
I don't know and I'm not sure I'd want to be around to find out
- MarkLv 71 month ago
Life would be extinguished within 30 light years. Nothing would happen to Earth, though, as Betelgeuse is 643 light years away.