🕳 Black Hole Geodesic Lab - 2D Light Bending, Shadow and ISCO

Top-view Schwarzschild geodesics: a fan of light rays bent or captured at 3 sqrt(3) M, a probe on a precessing orbit with the innermost stable circular orbit, and a ray-traced lensed star sky with the Einstein ring. Effective-potential, deflection and precession graphs with ten independent numerical checks.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install