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Schwarzschild Radius Calculator
Calculate the event horizon radius of a black hole
📖 Schwarzschild Radius
The Schwarzschild Radius estimates the number of active, communicative extraterrestrial civilizations in the Milky Way galaxy. It multiplies several factors: star formation rate, fraction with planets, habitable planets per star, etc.
📊 Result
💡 Tips & Information
- Formula: r_s = 2GM / c²
- For a solar mass black hole: r_s ≈ 2.95 km
- Larger mass = larger event horizon
- Anything within this radius cannot escape
- Also called the gravitational radius