How large would the Sun be if it was a black hole?

How large would the Sun be if it was a black hole?

At this radius, the escape speed is equal to the speed of light, and once light passes through, even it cannot escape. If the Sun was replaced with a black hole that had the same mass as the Sun, the Schwarzschild radius would be 3 km (compared to the Sun’s radius of nearly 700,000 km).

How small would the Earth have to be to be a black hole?

The Earth’s Schwarzschild radius is thought to be around 8.7mm, or roughly 17.5mm in diameter. A U.S. cent is around 19mm in diameter, so if someone were to shrink the Earth down to a little less than the size of a U.S. cent, it would become a black hole.

Is it possible for the Sun to become a black hole?

No. Stars like the Sun just aren’t massive enough to become black holes. Instead, in several billion years, the Sun will cast off its outer layers, and its core will form a white dwarf – a dense ball of carbon and oxygen that no longer produces nuclear energy, but that shines because it is very hot.

How many suns equal a black hole?

It has a mass equal to about 4 million suns and would fit inside a very large ball that could hold a few million Earths. How Do Black Holes Form?

Will Sun become a red giant?

The Sun will exit the main sequence in approximately 5 billion years and start to turn into a red giant. As a red giant, the Sun will grow so large that it will engulf Mercury, Venus, and possibly Earth, maybe even Mars and part or all of the asteroid belt.

What if a 1 cm black hole appeared on Earth?

The Earth would be destroyed, but the whole planet would not be swallowed up by the black hole. A black hole with a Schwarzschild radius of about a centimeter, which would make it about the size of a coin, would have about the same mass as the Earth.

What would happen if a 1mm black hole appeared on Earth?

Hossam Aly, Ph. D Astrophysics, University of Leicester, said a 1mm black hole would still have a mass of 10 percent that of Earth. If it was to hover on Earth’s surface, its gravitational pull would cover a third of the planet, tearing it up at 12 kilometres per second.

What would happen if 2 black holes collide?

It is possible for two black holes to collide. Once they come so close that they cannot escape each other’s gravity, they will merge to become one bigger black hole. Such an event would be extremely violent.

What if the Sun was blue?

What causes a hypernova?

A hypernova (alternatively called a collapsar) is a very energetic supernova thought to result from an extreme core-collapse scenario. In this case a massive star (>30 solar masses) collapses to form a rotating black hole emitting twin energetic jets and surrounded by an accretion disk.

Will our Sun turn into a white dwarf?

Once the Red Giant phase is complete the Sun will evolve into a White Dwarf, during which it will lose about half of its mass.

What is the biggest thing in the universe?

The biggest single entity that scientists have identified in the universe is a supercluster of galaxies called the Hercules-Corona Borealis Great Wall. It’s so wide that light takes about 10 billion years to move across the entire structure. For perspective, the universe is only 13.8 billion years old.

Can a black hole become full?

No, in fact they are a result of something being filled too much. Black holes form when a colossal amount of material gets crammed into a tiny space that’s much too small for it all to exist at once. When this happens, it collapses into something called a singularity.

How many Earths can fit in black hole?

This means that some 1.3 million Earths could fit inside one sun. Now multiply that number by 12 billion. That’s how many Earths could fit inside this black hole… makes you feel a little smallish.

How big would a black hole the size of Earth be?

Using the Schwarzschild radius calculation, a black hole the size of Earth would have a radius of less than one inch, making it about as big as a ping pong ball. The Sun, on the other hand, would have a radius of just under two miles.

What is the smallest thing that can become a black hole?

Minimum mass of a black hole In an early speculation, Stephen Hawking conjectured that a black hole would not form with a mass below about 10−8 kg (roughly the Planck mass).

Could the Earth become a black hole?

The only way Earth could be swallowed by a black hole would be if our planet happened to stray across a wandering black hole’s event horizon. That’s something that is not going to happen any time soon, and likely never will.

Can Earth form a black hole?

Chandra’s scientists have stated that to turn the Earth into a black hole, we would have to contract its entire mass to such an extent that it would become the size of a marble. This contraction will cause the planet to collapse on itself and eventually turn into a black hole.