Black hole
The black hole is represented by the Schwartzschild solution to Einstein's field equations. You are an observer moving in its vicinity. Not only your motion but also the perception of the surrounding universe is deformed by the black hole's gravity. Red- and blue-tinted areas in the image represent red and blue shift. In those places, time flows slower or faster than for the observer, respectively.
Viewing angle:
Simulation speed:
Tips for trying:
- Try finding initial distance and velocity for which the orbit forms a circle, an ellipse, or just passes by.
- What do you see when crossing the event horizon (gray area), when approaching the singularity?
- How do things change if an observer at the event horizon tries to hover or escape?
- Try zooming in on one of the Einstein rings and see the gravitational lensing in motion.
- Your observer can also spin. Can you keep looking in the direction of the black hole during your orbit?