I would assume that anything that lies within the photon sphere could never have a stable orbit. The photon sphere is the point that light itself orbits the black hole and its 1.5x the radius of the blackhole itself. Anything closer to the singularity than this boundry is doomed to fall into the singularity as it would require faster than light speeds to maintain any stable orbit.
I wonder if anything could actually cross the photon sphere at all without getting vaporized by potentially billions of years of accumulated light that got stuck orbiting the black hole.
Now I have a doubt. Could you have a stable orbit around the singularity but inside the event horizon? Or is the orbit speed above c?
Maybe you could live a comfy life there.
I would assume that anything that lies within the photon sphere could never have a stable orbit. The photon sphere is the point that light itself orbits the black hole and its 1.5x the radius of the blackhole itself. Anything closer to the singularity than this boundry is doomed to fall into the singularity as it would require faster than light speeds to maintain any stable orbit.
I wonder if anything could actually cross the photon sphere at all without getting vaporized by potentially billions of years of accumulated light that got stuck orbiting the black hole.