Eclipse Geometry Interactive
Simulate how celestial alignment, umbra, and penumbra cast solar and lunar eclipses.
Configuration
Aligned (0°)
Adjusts orbital offset across the ecliptic plane.
1.00x (Perigee)
Alters Moon distance to demonstrate Total vs. Annular solar events.
Current Phase & Status
Spatial Ray-Casting & Shadow Geometry
Live Model
Earth Observer View
Total Solar Eclipse
Key Principles
- Umbra: The inner dark cone of complete shadow causing totality.
- Penumbra: Outer partial shadow producing partial obscuration.
- Syzygy: The straight-line configuration of Sun, Earth, and Moon.