Developer Builds Browser-Based 3D Solar System Using Real NASA JPL Orbital Data

A developer has launched SOLAR, a free non-commercial web app that lets users fly through an interactive 3D solar system in their browser. Planet positions are calculated using real orbital elements from NASA's Jet Propulsion Laboratory, covering dates between 1800 and 2050. Kepler's equation is solved client-side via Newton's method, meaning every date yields an astronomically accurate position rather than a pre-animated frame. The project is built with React, Three.js, and TypeScript, and includes both a cinematic 3D flight mode and a mobile-friendly top-down ecliptic map with true and compressed distance scales. Known simplifications — such as omitting moons and full N-body integration — are openly documented by the developer.
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