The event horizon

node

The one-way surface of a black hole: the boundary of the region from which no signal, however energetic, can reach a distant observer. It is a feature of spacetime and not an object - there is nothing there to touch, no wall, no density change, and no local experiment an infalling observer could perform to detect the moment of crossing. The horizon is defined globally, by where light rays end up in the infinite future, which means its position depends on the entire future history of what falls in; a horizon can grow outward in anticipation of matter that has not arrived yet. For a non-rotating hole it sits at the Schwarzschild radius; for a rotating one it lies between half that and the full value, shrinking as spin increases. Hawking showed in 1971 that under classical general relativity the total area of horizons never decreases, a result whose formal resemblance to the second law of thermodynamics turned out not to be a coincidence. Not a place on Earth.

A node is not a place. Drawing it on a map would assert something about the world that no stored fact supports.