How large is a black hole with the same mass as the sun?

How large is a black hole with the same mass as the sun?

The black hole in GRO J1655-40 is estimated to weigh about 5.4 times the mass of the Sun, which would give it a radius of about 10 miles.

What would be the radius of the sun if it was a black hole?

3 km
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).

What would happen if the sun became a black hole with the same mass as now?

Instead, the Sun will become a dense stellar remnant called a white dwarf. But if, hypothetically, the Sun suddenly became a black hole with the same mass as it has today, this would not affect the orbits of the planets, because its gravitational influence on the solar system would be the same.

How much mass is needed for 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). To make a black hole, one must concentrate mass or energy sufficiently that the escape velocity from the region in which it is concentrated exceeds the speed of light.

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 some 6 billion years it will end up as a white dwarf — a small, dense remnant of a star that glows from leftover heat.

How does the radius of the event horizon of a black hole change as mass falls into it?

Feed the black hole some mass, and the horizon will grow—but not very much. Doubling the mass will make the black hole 6 kilometers in radius, still very tiny on the cosmic scale. The event horizons of more massive black holes have larger radii.

How do you find the mass of a black hole?

Answer: One can measure the mass of a black hole by tracing the motion of the gas and dust near the black hole that is being pulled-on by the mass of the black hole. This can be done at many wavelengths, such as by measuring the positions of stars which orbit near a black hole at optical wavelengths.

What would happen to Earth if the Sun became a black hole?

R = 2GM/c 2 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). Hence the Earth would have to get very close to get sucked into a black hole at the center of our Solar System.

What is the event horizon in a black hole?

The event horizon in a black hole is also called the Schwarzschild radius, after the physicist that first introduced this concept. For a non-rotating black hole, it depends only on the mass of the black hole, which makes this black hole event horizon/ Schwarzschild radius calculator very easy to use as it only needs one input parameter.

What determines the size of a black hole?

The size of the black hole is determined by the mass of the singularity. The greater the mass of the singularity, the greater the Schwarzschild radius. But, the gravitational field is no stronger than that of another celestial object of the same mass.

What is the Schwarzschild radius of a black hole?

The Schwarzschild radius can be calculated using the equation for escape speed: R = 2GM/c 2 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).