Star Luminosity Calculator
From Absolute Magnitude
L/L_sun = 10^((4.83 - M) / 2.5)
From Radius and Temperature
L = R^2 * (T/T_sun)^4 in solar units
Formula
L/L_sun = 10^((4.83 - M) / 2.5) | L = R^2 * (T/T_sun)^4
Frequently Asked Questions
What is stellar luminosity?
Stellar luminosity is the total energy a star emits per second. The Sun emits about 3.828 x 10^26 watts.
How does absolute magnitude relate to luminosity?
A difference of 5 magnitudes equals a factor of 100 in brightness. Lower magnitudes mean brighter stars.
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