0
When did a supernova actually occur if it happened in a galaxy 160000 light years away?
Wiki User
∙ 14y ago
If we're just SEEING the supernova now, although it was in a galaxy 160K light years away, then it actually exploded 160,000 years ago. The light has been on its way to us (actually, expanding in all directions!) for 160,000 years.
If it were to explode right now, we wouldn't know about it for another 160,000 years.
This may become an important point some day. The red giant star Betelgeuse, the shoulder of Orion, is about 600 light years away. As a giant star, it burns very quickly and will "soon" explode. ("Soon" is relative to the lives of stars, not people. It may be any time within the next half-million years.) In fact, it may have already exploded - and we wouldn't know it until the light arrives here, hundreds of years later!
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What happened to a star in a nearby galaxy in 2012 supernova movie?
We are only in the year 2010. If there is a planned movie for 2012, such details have probably not been released yet.
Why can you see a supernova explosion?
Because they are massive explosions that can outshine a whole galaxy.
What is a supernova that can emit an amount of energy equal to?
Not sure what you mean. For a few days, a supernova shines as bright as an entire galaxy - that is, roughly as bright as 100 billion stars.
Can see a supernova explosion on another galaxy?
Actually before the rise of visible light there is a surge in neutrinos that can give a warning of a super-nova by as much as five days. Then comes the light flash in all forms of electromagnetic radiation (including visible light).
Which star has the greatest probabilty of producing a supernova explosion?
There are many, as too there are many stars. Most supernova explosions are outside of our Galaxy and can occur at any time. So when a supernova explosion is witnessed, it's a rare event. Within our galaxy, or at least within visual with the naked eye, it has to be Betelgeuse. At only 600 light years from us, it is already experiencing the precursor to a supernova eruption. When it will occur - or more correctly - when will we observe it, is any ones guess, but it is expected within humanities lifetime.
Which is the largest supernova or galaxies?
Galaxy
Is a supernova a type of galaxy?
No. A supernova is a massive explosion, usually from a dying supermassive star.
What happened to a star in a nearby galaxy in 2012 supernova movie?
We are only in the year 2010. If there is a planned movie for 2012, such details have probably not been released yet.
Which galaxy has a name starting with g?
The only one I know of is G350.1-0.3, It was thought to be a galaxy but turned out to be a supernova remnant.
Why can you see a supernova explosion?
Because they are massive explosions that can outshine a whole galaxy.
How do you start Valkyrie in Galaxy on fire 2?
You buy it then you play it get it with supernova for $9.99
What is a supernova that can emit an amount of energy equal to?
Not sure what you mean. For a few days, a supernova shines as bright as an entire galaxy - that is, roughly as bright as 100 billion stars.
Can see a supernova explosion on another galaxy?
Actually before the rise of visible light there is a surge in neutrinos that can give a warning of a super-nova by as much as five days. Then comes the light flash in all forms of electromagnetic radiation (including visible light).
What type of galaxy is the m81?
M81 is a spiral galaxy. I have seen it through several telescopes and it is a beauty! There was a Type II supernova in 1993 and I was able to find it in my 6" 'scope.
When did Galaxy Game happen?
Galaxy Game happened in 1971.
When did Galaxy Trek happen?
Galaxy Trek happened in 1982.
When did Aces of the Galaxy happen?
Aces of the Galaxy happened in 2008.
