How far is the event horizon from a black hole?

Event Horizon: Extending at least seven billion miles around the supermassive black hole in M87, this is the boundary beyond which not even light cannot escape. 3. Static Limit: A black hole’s spin can twist space, speeding or slowing matter orbiting nearby.Click to see full answer. Keeping this in consideration, does time stop at the event horizon of a black hole?2 Answers. If you’re sitting outside the event horizon watching a clock fall in, you will never see the clock reach the event horizon. You will see the clock slow as it approaches the horizon and you’ll see it running slower and slower. However there is no sense in which time stops at the event horizon.Secondly, how far is the event horizon from the center of a black hole? black hole in M87Black hole at the centre of the massive galaxy M87, about 55 million light-years from Earth, as imaged by the Event Horizon Telescope (EHT). The black hole is 6.5 billion times more massive than the Sun. Also Know, can you see the event horizon of a black hole? Although no-one has ever actually seen a black hole or even its event horizon, this accretion disk can be seen, because the spinning particles are accelerated to tremendous speeds by the huge gravity of the black hole, releasing heat and powerful x-rays and gamma rays out into the universe as they smash into each otherWhat happens when you cross the event horizon of a black hole?What’s special about an event horizon is that once anything, matter or even light, passes beyond the event horizon, it can never escape from the black hole, and will continue falling towards the center of the black hole, which is called a singularity.