🪐 3D Gravity Assist Simulator - 2D Hyperbolic Flyby and Velocity Diagram

2D companion of the Gravity Assist Simulator: the hyperbolic flyby in the planet frame, the Sun-frame velocity triangle, and turn angle and speed change against closest approach for real planets, with an independent RK4 check.

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