Eight worlds. One star.A solar system shaped by Einstein.
General relativity, in the weak-field limit.
An immense world of hydrogen and helium, surrounded by a disk of ice.
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The Sun and eight planetary systems are numerically integrated from a fixed JPL Horizons snapshot: 1 January 2025 TDB, for twenty Julian years.
Einstein uses REBOUNDx’s all-body first post-Newtonian correction. Newton uses the same initial state without that correction. The difference is subtle at Solar System scales; switching models does not create a dramatic visual jump.
Planets represent their system barycenters, including satellite masses. Moon motion, asteroids, solar oblateness, higher relativistic orders and light propagation are omitted. This is not a precision ephemeris.
Planet sizes are enlarged for visibility. Atlas mode compresses radial distances; linear mode preserves distance ratios. Rotation, atmospheric glow, lighting, and ring detail are illustrative. Faint orbit guides are osculating Kepler ellipses at the initial epoch.
Planet maps: Solar System Scope / INOVE, CC BY 4.0. NASA-based, color-adjusted imagery. Rendered with Three.js. Decorative stars are not a navigational sky map.