🛰️ Satellite Orbit — 2D Gravity Lab
A top-down 2D companion to the 3D Satellite Orbit scene: a real two-body gravity integrator drives the satellite's path, so changing launch altitude, speed, angle or the central body's mass actually reshapes the orbit — circular, elliptical, or an escape trajectory — instead of animating a fixed loop.
⚙ Under the hood
Symplectic-Euler two-body gravity integration in a flat, top-down 2D view: the satellite's velocity and position update each frame from Newton's inverse-square law, so eccentricity, semi-major axis and orbital period are computed live from the actual trajectory, not looked up from a preset.
orbital mechanicskepler's lawsgravitational forceeccentricitytwo-body problem
2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install