✨
Luminosity Calculator
Calculate stellar luminosity from temperature and radius
📖 Luminosity
The Luminosity 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
- Luminosity is measured in solar luminosities (L☉) or watts
- Formula: L = 4πR²σT⁴ (Stefan-Boltzmann law)
- Sun's luminosity: 3.828 × 10²⁶ W = 1 L☉
- Hotter and larger stars are more luminous
- Luminosity determines a star's position on the HR diagram