Eddington Luminosity Limit Calculator
High-energy astrophysics: Calculate maximum stable radiation luminosity ($L_{\text{Edd}}$), radiation pressure outward acceleration vs gravity, Eddington mass accretion rate ($\dot{M}_{\text{Edd}}$), and Eddington ratio ($\lambda_{\text{Edd}}$).
Central Object Mass & Composition
1 M_☉ = 1.989 × 10³⁰ kg
Cosmic gas X ~ 0.70; Pure He X = 0
Actual Luminosity & Accretion Efficiency
In units of Solar Luminosity L_☉
Schwarzschild BH ~0.057; Kerr BH ~0.10–0.42
Eddington Limit Output
Eddington Luminosity L_Edd:
--
Watts (L_☉)
Eddington Ratio λ_Edd = L / L_Edd:
--
Radiation balance parameter
Max Eddington Accretion Rate M_dot:
--
Solar masses / year
Electron Scattering Opacity κ_es:
--
cm² / g (Thomson scattering)
| Salpeter Characteristic Timescale t_Sal: | -- |
| Metric Accretion Rate: | -- |
| Radiation Acceleration vs Gravity: | -- |
| Hydrodynamic Stability State: | -- |
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