if a black hole was as near to planet earth as the sun, what would happen to earth? what effects would we feel

Question

i mean a large black hole to

Answer 1

If what I have learned is true I believe the first things we would see is the solar winds pulled towards the hole. After that the outer planets if near would go into the hole. The asteroids because of their size will be pulled from orbit. When we as the average Joe would know something is when the quakes start. What would follow you don't want to know, ignorance is pure bliss. I hope this answers you, for me if I knew I would head east.

Answer 2

Well, black holes come in different mass, if the black hole has the same mass as the Sun and replaces the Sun, which would be the same as the Sun collapsing into a black hole, then the Earth would just continue orbiting the black hole like nothing had happen, just that we won't get any light.

If the black hole is much more massive, then the earth will experience an attraction towards the black hole. That doesn't mean we'll be sucked into it, we could just orbit it at a faster speed than we normally do with the sun, i.e. years get shorter. If we get pulled into the black hole however, what you'll see is the earth and everything else on it being stretched in the direction of the black hole so that it becomes oval-shaped (it's a phenomenon known as spaghettification). As we approach close to the black hole, time slows down. We wouldn't notice the time change but people far from the black hole will see us falling into the black hole but never touching it, and this occurs forever until the end of time.

It is a misconception that black holes suck everything into them, that only happens when you go too close to it (you can calculate this distance roughly using the formula for gravity). Just hope the Earth doesn't run into a collision course with the black hole.

If the black hole is small, (anything larger than Mt Everest can be made into a black hole) then nothing much would change, just that we can't see the black hole.

Oh, and one more thing, the smaller black holes can evaporate off completely given enough time.

Answer 3

Most black holes have approximately the mass of the sun. A solar mass black hole at the distance of the Sun would have *exactly* the same gravitational effect on the Earth that the Sun does.

Answer 4

If a black hole could exist it would act like any celestial body.
If the mass of the black hole was the mass of the sun every thing would be the same except you would have no light.
We would just orbit it as now but we would be a frozen planet.

Answer 5

It entirely depends on how massive the Black Hole is. The gravitational effects would be the same as a star or planet of the same mass.

Answer 6

There's nothing magic about a black hole. If it had the mass of a few suns, there would just be a source of gravity equivalent to a few solar masses there. There's no mysterious force or anything; it just looks like a mass sitting there. If it were super massive (a million solar masses) we would start seeing some relativistic effects like distortion of our star fields etc. and if it were were really massive, we would be inside the event horizon and part of the black hole.

Answer 7

Assuming the black hole has the same mass and gravity as the sun, the only differences would be, no sunlight.

What makes a black hole, is the escape velocity at the surface is greater than the speed of light, so that light cannot escape from it.

Answer 8

first of all we would be able to locate a black hole outside of our universe thousands of years before it even came close to our universe so if one were heading our way it would not be recent news. if it did reach our universe and again, this would take it a very long time to get here, it would suck up everything in its path. even if it were right outside our solar system it would take years and years to get to earth, but when it closes in the first thing that would happen would very slowly lift all vegetation into space and the last humans would first feel as if they were floating as the great gravitation from the black hole slowly tears their body into millions of separate pieces. you could just imagine what would happen. a black hole destroys everything in it's path. but the chances of dieing from the death of our sun which has lived about half of it's life for a star similar to it's size, is more probable. the sun has about another 4 billion years before it dies, but it will die, like all other stars. it will turn into a red giant until it uses up all it's energy from the inside out. everything has an end and nothing lasts forever. people always leave you and you can never be sure of anything in this life, so my advice for you is pretend like everything is okay until you start to believe it yourself, it's your only hope.

Answer 9

If the earth should lay within the singularity if a nearby black hole, escape would be impossible and earth would be pulled into the black hole.

Answer 10

A black hole is always very big. They can create a gravity well that is 100 light years across. So at 93 million miles we are being sucked in ... and after that nothing could save U.