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Redshift Calculator
Calculate redshift and recessional velocity of galaxies
📖 Redshift
The Redshift 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
- Redshift z = (λ_obs - λ_rest) / λ_rest
- Recessional velocity: v = c × z (for small z)
- Higher redshift means greater distance and faster recession
- Used to measure distances to distant galaxies
- Cosmic microwave background has z ≈ 1100