Black holes
Black holes were stars that, at the end of their lives, contracted and created cores of matter so concentrated that gravity reached unimaginable values. The escape velocity of these objects is greater
than the speed of light itself.
This boundary beyond which light can no longer escape gravity is called the Event horizon.
Astronomers believe that there is at least one supermassive black hole in the center of each galaxy, despite the lack of scientific evidence to support this belief.
In GravitaSim, Event Horizon is used to quantify the size of black holes, which is defined by the Schwarzschild equation.
Where G is the gravitational constant, M is the mass of the central body, and c is the speed of light in vacuum.
In GravitaSim, anything with a radius smaller than the Schwarzschild radius is considered to be a black hole.
According to this formula, Cygnus X-1 has a Schwarzschild radius of about 62 km (38.5 mi).
If we consider objects with lower masses, such as the Sun, Earth, or Moon, we can calculate their size if they were black holes. The compact objects would then be micro black holes. The existence of these objects has not yet been proven.
Our Sun would have to be approximately 3 km (1.86mi) in radius to be considered a micro black hole.