WebGL not available

This black-hole simulation needs WebGL, which your browser/device isn't providing. Try a desktop browser with hardware acceleration enabled.
← back to orbital-watch

Black Hole — live physics simulation

Every frame, light rays are bent by the curvature of spacetime around a non-rotating (Schwarzschild) black hole and traced back to what they hit. This is computed live from general relativity in your browser — it is not a photograph and not telescope data. ← back to orbital-watch

What's physically real here: gravitational lensing (the ring of distorted background stars), the photon ring / black shadow at ~2.6× the event-horizon radius, the Einstein ring, and relativistic Doppler beaming — the disk side rotating toward you looks brighter and bluer (the same asymmetry in the 2019 Event Horizon Telescope image and in Interstellar's Gargantua). What's simplified: photon paths use a standard post-Newtonian light-bending approximation (not a full geodesic integrator), the hole is non-spinning, and the accretion disk and starfield are procedural, not measured. Drag to orbit · scroll / pinch to zoom.