This is called a black hole. It is formed when a supermassive star has lost so much heat that its fusion is no longer able to create enough force to keep it from collapsing. A black hole is formed if the collapsing star is 13+ Sol's mass (I think). The reason it is called a black hole is because no light can escape, and therefore it looks like a hole of blackness.
Black holes are not actually completely black, but emit small amounts of radiation. They, however, black in visible light.
It is also sometimes called a black star.
Also, no, I didn't get this from Wikipedia, but rather from science class. Sadly, I don' remember most of it, so I couldn't give you the exact details... I know that the repellative forces of protons and/or electrons are somehow involved, but I forget exactly how.
Although you are 100% correct in information, the picture is highly inaccurate.
Black holes appear as small shifts in light or warps in light because since they suck in light they appear to bend the light around them from us.
