|1. If there is sufficient mass to overcome all degenerate pressure, hydrostatic equilibrium will continue to regulate the stars size and fusion rate.|
|2. Since there is no end to its compression it compressed into a single point called a “Singularity”, which is the center of a black hole.|
|3. Black holes are formed when the remaining mass is around 4 or 5
times the size of the Sun.
|1. As very large stars advance to burn silicon, an iron core will begin to form where no fusion takes place.|
|2. Since there is no fusion in this core, there is no pressure to counteract gravity.|
|3. When the iron core exceeds 1.4 Solar masses, it will collapse.|
|4. This core collapse takes place very fast (about 1mSec), so the outer layers fall inward to the core and bounce off in an explosion called a “supernova”.|