Supernova Energy Calculator
Calculate Schwarzschild radius r_s, Hawking temperature, Hubble redshift expansion, stellar luminosity, and Chandrasekhar mass limit for supernova energy.
Input Astrophysics Parameters
Enter stellar mass, cosmological redshift, or distance.
Calculated Event Horizon Radius / Value
Schwarzschild Metric
The event horizon radius of a non-rotating black hole scales linearly with mass: r_s = (2 × G × M) / c² ≈ 2.95 km per solar mass M☉.
Calculation Methodology & Details
Formula
Applies Einstein's General Relativity field equations, FLRW cosmological metric, and quantum Hawking radiation thermodynamics.
Important Disclaimer
Calculations assume standard ΛCDM cosmological model parameters (H₀ ≈ 67.4 km/s/Mpc) and spherically symmetric non-charged Kerr-Schwarzschild metrics.
How to Calculate Step-by-Step
Follow these steps to complete the calculation:
Step 1
Enter stellar mass M in solar units (M☉ = 1.989 × 10³⁰ kg) or redshift z.
Step 2
Specify Hubble constant H₀ or parsec distance d.
Step 3
View event horizon radius in km, Hawking temperature in Kelvin, stellar main-sequence lifetime, or comoving galaxy distance in Megaparsecs (Mpc).
Detailed Insights & Expert Guide
ℹ️ About this Calculation
The Supernova Energy Calculator calculates General Relativistic black hole event horizons, Hubble cosmological expansion redshift, Chandrasekhar white dwarf limit, gravitational lensing deflection, and Big Bang timeline evolution.
Variable Glossary
Solar Mass (M☉)
Standard astronomical mass unit equal to the mass of the Sun (1.98847 × 10³⁰ kg).
Redshift (z)
Fractional change in electromagnetic wavelength caused by cosmic space expansion: z = (λ_observed - λ_emitted) / λ_emitted.