solar system eclipse
A free physics simulation — play it in your browser, no install. Real-time gravitational N-body simulation of the Solar System that predicts solar eclipses — with a 3D WebGL view and an 'enter Earth' surface eclipse experience.
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Controls: Orbit camera: drag · Zoom: scroll / pinch · Play / pause: space or
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Open the live demo Source on GitHubFrom the README
A real-time gravitational N-body simulation of the Solar System that derives planetary orbits from first-principles physics and uses them to predict solar eclipses — then lets you stand on Earth and watch one happen.
Inspired by the Claude Fable 5 demo "simulates the solar system and predicts a solar eclipse." Single self-contained index.html — no build step.
symplectic velocity-Verlet integrator. Orbital periods, ellipses and perturbations emerge from the physics (energy is conserved to ~10⁻¹⁵ over years of simulated time).
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