☀️ Eclipsing Binary Solver: Weighing Two Stars from Light and Velocity

Weigh two stars the way astronomers do: fit the eclipse light curve and the two radial-velocity curves of a detached double-lined binary, then read off masses and radii in solar units with error bars. Mystery systems with seeded noise, a Levenberg-Marquardt fit in a Worker, limb darkening, band-dependent surface brightness, self-checks and a mass-radius diagram.

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install