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How long would it take for us to know about a star that goes supernova from 500 light years away?
Wiki User
∙ 13y ago
The light of the explosion wouldn't arrive at the Earth for 500 years.
Wiki User
∙ 13y ago
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How long would it take to see a star explode on earth?
That depends on how far away the star is. If the exploding star is 1,000 light years away we would see the supernova 1,000 years later. If it is 2,000 light years away we would see it 2,000 years later.
The star Betelgeuse is about 425 light-years away If it explodes tonight what would happen?
I would like to explain that in fact, Betelgeuse is closer to 640 light-years away than it is to 425 ly. So, if it goes supernova tonight, the light from this massive explosion would take 640 years to get to Earth. So, we would observe this supernova only 640 years after it has actually happened.
Is a star going supernova in the Orion?
It's quite possible that we MAY see Betelgeuse go supernova. It may have already happened but as the star is over 600 light years away, the light will take a while to reach us.
Is there a star about to destroy the earth or have a supernova and wipe out the world?
No, The initial blast of a supernova is only about 10 lightyears at their largest, and there are only a handful of stars within that distance to us. Though even if a star 500 ly away did go super nova, there would be one awesome bright light in the sky (that would last for years).
Why would you not see a supernova explosion?
Because the nearest star to us is a couple hundred light years away. This means it will take a couple hundred years for the light given off by that star to reach us. Samething goes for a super nova. So right now a super nova is probably happening somewhere and we wont know about it for a long long time. If our sun went super nova we would have 8 minutes until we would know about it and then we would all be dead. No, the nearest star to us is 4-and-a-bit light years away (the alpha Centauri system) but alpha centauri is very similar to the Sun and thus not massive enough to become a supernova. If you were looking at the sky and a star went supernova, you most definitely would see it!
How far from a supernova do you have to be to be safe?
About 50 to 100 light-years as the closest safe distance between Earth and a supernova. But, if a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions.
What was the first supernova called?
Probably the Vela supernova in the southern constellation Vela. Its source supernova exploded approximately 11,000-12,300 years ago (and was about 800 light years away).
How long would it take to see a star explode on earth?
That depends on how far away the star is. If the exploding star is 1,000 light years away we would see the supernova 1,000 years later. If it is 2,000 light years away we would see it 2,000 years later.
Can humans visit a supernova?
No. The closest known supernovae have been thousands of light years away. Even then, it would be a very bad idea to be near one. There would be no chance of survival.
What would happen if all the suns that can go supernova went supernova at the same time?
There are huge spaces between stars. The biggest threat to Earth would be the gamma radiation emitted, which could sterilize the Earth from as far as 10 light-years away.
If something happens in space X amount of light years away from Earth does it take X amount of light years to suffer the effects on Earth?
Depends on what "something" is. If the "something" was light or an electromagnetic pulse, then it would travel at the speed of light. It the object had mass, then it would not travel at the speed of light. This was a major error in the film 2012 Supernova, where they had time to react to a supernova explosion. In reality, news of the event would occur at the same time the devastation occurred.
The star Betelgeuse is about 425 light-years away If it explodes tonight what would happen?
I would like to explain that in fact, Betelgeuse is closer to 640 light-years away than it is to 425 ly. So, if it goes supernova tonight, the light from this massive explosion would take 640 years to get to Earth. So, we would observe this supernova only 640 years after it has actually happened.
Grab nebula was first seen on earth in 1054 how long did it take to get here?
Supernova(SN) 1054 Crab Supernova was first seen in 1054, it is estimated to be 6,500 light years away, so 6,500 years
Is a star going supernova in the Orion?
It's quite possible that we MAY see Betelgeuse go supernova. It may have already happened but as the star is over 600 light years away, the light will take a while to reach us.
How far is the closest star to earth?
The closest supernova, or more correctly supernova remnant, is the Vela supernova remnant [See Link] in the constellation Vela. The "guest" star exploded about 11 - 12,000 years ago and is located around 800 light years from Earth.
How far away is a supernova?
Supernovas are massive stars that have exploded. It is not a name for a single star.Therefore their distances are varied.The Crab nebula (A former supernova) is located at a distance of about 6,500 light years.SN1987A (Seen in 1987) is about 168,000 light years from us. So the supernova occurred around the time of the emergence of homo sapiens.SN2006gy (Seen in 2006) is about 238 million light years from us. So it exploded around the time Vertebrates ruled the world!!Vela exploded approximately 11,000-12,300 years ago (and was about 800 light years away).
Which star if it were to go supernova is close enough to harm planet Earth?
The nearest likely supernova candidate I know of is Betelgeuse, which is about 640 light years away, and is already well off the main sequence in a Red Giant phase. In order to seriously disrupt Earth, a supernova would probably have to be significantly closer than that.
