Home▸Space & Astronomy▸Black Hole Light and Orbits: 2D Geodesics

🕳️ Black Hole Light and Orbits: 2D Geodesics

Top-down Schwarzschild geodesics: a fan of light rays bent and captured by a black hole with exact versus weak-field deflection, and launchable probes whose orbits precess, plunge or circle the photon sphere.

Space & Astronomy2DAdvanced60 FPS📱 Mobile-adapted⇄ 2D version

Details

CategorySpace & Astronomy

RenderingCanvas 2D

DifficultyAdvanced

Target FPS60

ControlsMode switch between light ray fan and probe orbits, ray count, spacing and beam offset sliders, launch speed and direction, presets, view width, black hole mass, time scale, run, step and reset; drag the beam handle or drag on the canvas to launch a probe.

black holeSchwarzschildgravitational lensinggeodesicsphoton spheregeneral relativity

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⚙ Under the hood

black holeSchwarzschildgravitational lensinggeodesicsphoton spheregeneral relativity

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