🚀 Gravitational Slingshot - 2D Flyby Hyperbola and Velocity Triangle

2D companion of the Gravitational Slingshot gravity-assist simulation: the hyperbolic flyby in the planet frame, the Sun-frame velocity triangle, and the speed gained or lost against periapsis, integrated numerically and checked against the analytic deflection angle.

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