 Solar luminosity

The radiant power emitted by the Sun. A reaction-rate estimate must use the energy deposited in visible radiation per reaction, excluding energy lost in escaping neutrinos.

Solar luminosity is a measure of the total amount of energy emitted by the Sun per unit of time in the form of electromagnetic radiation, primarily as light and heat. It is commonly denoted by the symbol \( L_\odot \). The standard value of solar luminosity is approximately \( 3.828 \times 10^{26} \) watts. This value serves as a reference point for measuring the luminosity of other stars and celestial objects.