#### Schwarzschild radius equation

## What is the Earth’s Schwarzschild radius?

The Schwarzschild radius for the Earth is approximately one inch, meaning that you could squish the entire mass of the Earth into a sphere the size of a basketball and still not have a black hole: light emitted from that mass can still escape the intense gravitational pull.

## What is the average radius of a black hole?

The Schwarzschild radius of the supermassive black hole at the Galactic Center is approximately 12 million kilometres.

## How do you measure the size of a black hole?

The radius of a black hole is related to its mass by the simple formula R = 3 M ,where M is the mass of the black hole in units of the sun’s mass, and R is the radius of the Event Horizon in kilometers.

## How are the event horizon and Schwarzschild radius related?

How is the event horizon related to the Schwarzschild radius? The event horizon is in the shape of a sphere around the black hole, since an object could approach the black hole from any direction. The Schwarzschild radius is the radius of that sphere.

## What is the radius of a singularity?

A singularity is a point which has zero radius and infinite density.

## What is value of G?

Its value is 9.8 m/s^{2} on Earth. That is to say, the acceleration of gravity on the surface of the earth at sea level is 9.8 m/s^{2}. When discussing the acceleration of gravity, it was mentioned that the value of g is dependent upon location.

## Are black holes forever?

Black holes have a finite lifetime due to the emission of Hawking radiation. However, for most known astrophysical black holes, the time it would take to completely evaporate and disappear is far longer than the current age of the universe.

## Can gravity bend light?

Gravity bends light Light travels through spacetime, which can be warped and curved—so light should dip and curve in the presence of massive objects. This effect is known as gravitational lensing GLOSSARY gravitational lensingThe bending of light caused by gravity .

## What’s inside a black hole?

According to theory, within a black hole there’s something called a singularity. A singularity is what all the matter in a black hole gets crushed into. Others say that the singularity is actually a whole surface inside the event horizon.

## What is the diameter of black hole?

The math of calculating the diameter of a black hole could not be easier. A black hole with the mass of the sun has a diameter of about 6 kilometers, or 4 miles.

## How many Gs is a black hole?

A black hole contains about 3.7M (3.7 million) solar masses (a solar mass is 1.98892 × 10^{33} grams) and is assumed to be a sphere with a Schwarzschild radius of 3×10^{5} cm x (M / M_{sun}) where M is the mass of the black hole and M_{sun} is the mass of the Sun.

## Could our Sun become a black hole?

Will the Sun become a black hole? No, it’s too small for that! The Sun would need to be about 20 times more massive to end its life as a black hole. In about 5 billion years, the Sun will start to run out of hydrogen in its core to fuse, and it will begin to collapse.

## What is the radius of m87 black hole?

The Schwarzschild radius of the black hole is 5.9×10^{−}^{4} parsecs (1.9×10^{−}^{3} light-years), which is around 120 times the Earth–Sun distance.

## Can earth turn into a black hole?

It simply does not contain enough matter to exert that kind of gravitational force on itself. A star has to be more than about 10 times the mass of our Sun to become a black hole. Just remember that a black hole is any amount of matter squeezed into a very, very dense package. Earth would then be a black hole!