Luminosity (L☉)
Calculate Luminosity (L☉) instantly with the exact formula and a worked example. Free online calculator — no signup.
Luminosity (L☉)
Radius (R☉)
TemperatureK
Luminosity (L☉)
1
More about: Luminosity (L☉)
What it calculates
The “Luminosity (L☉)” calculator computes Luminosity (L☉) from 2 parameters: radius (r☉), temperature (K).
An astronomy calculation for enthusiasts and scientists.
Example calculation
With parameters Radius (R☉) = 1, Temperature = 5,778 K the result is 1 (L/L☉ = (R/R☉)²·(T/T☉)⁴).
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.