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🌘 Solar Eclipse Simulator - 2D Shadow Geometry and Light Curve

2D companion of the solar eclipse simulator: real-scale umbra and penumbra cones, the observer's sky, the light curve through totality or annularity, and in-page numerical checks.

Physics & Mechanics2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

⚙ Under the hood

2D companion of the solar eclipse simulator: real-scale umbra and penumbra cones, the observer's sky, the light curve through totality or annularity, and in-page numerical checks.

solar eclipseumbra and penumbraangular sizelight curvecelestial mechanics

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