Solar System
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**Orbitalis 3D** is a high-precision, GPU-accelerated 3D Solar System simulator that calculates real-time N-body gravitational physics and exact planetary orbits with sub-percent accuracy.
What it does
Orbitalis 3D models the real-time 3D dynamics of the Sun and all eight planets using exact NASA JPL J2000 parameters. Driven by a double-precision (f64) N-body physics engine and a symplectic Velocity-Verlet integrator, it calculates mutual gravitational forces across every body while incorporating Jacobi barycentric corrections for orbital period accuracy within ~0.1%.
Users can interactively explore the Solar System via a 3D camera, adjust time-step speeds, and view fading orbit trails in real time. Upon exiting, the program evaluates numerical stability by plotting total energy conservation and comparing simulated trajectories against ideal Keplerian orbital ellipses.