# Black body/Sun radiation - λmax

The Sun's effective temperature is 5778K. Using Wien's law we can calculate the wavelength λmax in which we observe the maximum amount of radiation received from the black body. After doing the calculation, we see that λmax=500nm approximately.

We can find that an absorption line of Hydrogen is at 486nm. By comparing the two wavelengths we can see that they are very close. Can we deduct that the reason λmax is equal to approximately 500nm is caused by the fact that the Sun is burning Hydrogen at this point of its lifecycle?