The Stefan-Boltzmann equation quantifies that relationship.

emission to the fourth power (T4 , Stefan-Boltzmann’s law).

Stefan–Boltzmann’s law expresses this mathematically.

It is known under the name of law of Stefan or more usually law of Stefan-Boltzmann bus it is his pupil Ludwig Boltzmann who will provide the theoretical justification of it.

It is known under the name of law of Stefan or more usually law of Stefan-Boltzmann bus it is his pupil Ludwig Boltzmann who will provide the theoretical justification of it.

From the Stefan–Boltzmann law, the energy flux from Vega's equator will be about:

Describe Planck's law and its derivatives: Stephan-Boltzmann’s Law and Wien’s Displacement Law.

2) Total emission increases with the 4th power of temperature, the Stefan-Boltzman Law.

The Stefan–Boltzmann law gives the total power (energy/second) the Sun is emitting:

To begin, we use the Stefan–Boltzmann law to find the total power (energy/second) the Sun is emitting:

The Stefan'Boltzmann law gives the total power (energy/second) the Sun is emitting:

, for example, the spectrally integrated intensity is proportional to the fourth power of the temperature (Stefan-Boltzmann law).

wavelengths is proportional to T^4 (Stefan-Boltzmann Law).

nota: Thanks to the Stefan-Boltzmann law, astronomers can calculate the radii of the stars.

nota: Thanks to the law of Stefan-Boltzmann, astronomers can calculate the radii of the stars.