🛰️ Oberth Effect Perigee Burn: Earth Flyby Gravity Assist Lab

Fly a probe past Earth on a hyperbola and see how the pass turns its velocity, changing its Sun-frame speed, and how a rocket burn at perigee adds far more orbital energy than the same burn far away. RK4 trajectory checked against the closed-form hyperbola, turn angle and Oberth relations.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install