Asked by :]

Which is hotter - a red star or a blue star? Why?

I know it's the blue star, but I don't know why...
Answered by Count Iblis
The radiation emitted by a star is to a good approximation thermal radiation. This then implies that the spectrum will be the Planck spectrum. The higher the temperature, the shorter the wavelength at which the emitted power will peak.
There are no AI answers yet. The ability to request AI answers is coming soon!