🌌 Clockwork Orrery - 2D Kepler Orbits and Equal-Area Law

2D companion of the clockwork orrery: eight planets on Kepler ellipses solved with Newton iteration, a swept-area wedge, distance and speed graphs, the log-log period law, and an independent RK4 two-body check of Kepler's laws.

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