By vs ORBITARIUM

The Physics of Stars — in your hand. By-Pass is an interactive physics laboratory that brings the fascinating complexity of Newtonian mechanics to your iPad and iPhone. Here, you become the architect of orbital systems and watch simple forces give rise to highly complex mathematical patterns. Unlike simple animations, By-Pass uses its own physics engine with a simulation rate of 60 Hz to calculate real gravitational interactions accurately and without compromise. The physical core: Master of Orbits: Create satellites and planets with intuitive gestures. Use drag gestures to define the initial launch velocity and watch as objects settle into stable orbits or drift away into the vastness of outer space. Dynamic Gravitational Centers: Choose between 1, 2, or 3 suns. Experiment with the unstable and fascinating solutions of the famous three‑body problem. Each additional center dramatically alters the gravitational field and sends your planets onto unpredictable, dancing trajectories. Variable Gravitational Exponents: Switch between a fully realistic simulation (exponent 2.0) and modified fields for extremely long‑lasting, geometric path traces. Precision & Performance: Experience the simulation with a render target of 120 FPS. The physics runs independently at 60 Hz, ensuring smooth visuals even in the most complex systems. Procedural Matter: Each planet (Rocky, Lava, Gas, Ocean, Icy) is generated at runtime and behaves as a discrete physical entity within the simulation.

ORBITARIUM is a native astronomy app for iPhone and iPad that lets you explore the Solar System now through interactive 3D graphics and on-device astronomical calculations. Move through time and see planetary positions, day and night on Earth, axial-tilt seasons, and lunar phases update together in one coherent view. KEY FEATURES • The Sun, all eight planets, and the Moon in an interactive RealityKit scene • Drag, pinch, and tap to orbit, zoom, and focus on celestial bodies • Select a date, play or pause time, change speed, and move across a four-year range • Earth's day-night boundary, city lights, clouds, and atmosphere synchronized with sunlight • Northern and Southern Hemisphere seasons explained through axial tilt • Moon phase, illumination, age, and the next principal phase • Local time, solar altitude and azimuth, sunrise, and sunset for nine locations worldwide • Japanese and English localization • No account required; core features work completely offline Planet positions and astronomical events are calculated on device. Body sizes and distances are compressed or exaggerated for educational readability and are clearly identified in the app.