🌌 Astrophysics: Stellar Evolution & H-R Diagram (2D)

Interactive 2D Hertzsprung-Russell diagram: set a star's mass to see its temperature, luminosity and radius follow real stellar-physics scaling laws, then evolve it into a red giant and white dwarf.

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install