1. What is the temperature of the Sun in Kelvin?
Locate the peak of the plotted curve, at which wavelength (x-value) is the peak power spectral density for the Sun? Give your answer in nanometers (nm).
Which part of the electromagnetic spectrum is this?
2. What is the temperature of Sirius A in Kelvin?
At which wavelength is the peak power spectral density for Sirius A? Give your answer in nanometers (nm).
Which part of the electromagnetic spectrum is this?
Would you say Sirius A is more red or more blue? Explain.