1. The problem statement, all variables and given/known data The peak intensity of light from the sun occurs at a wavelength 500nm. Astronomers discover a nearby star X which is the same size and mass as the sun, but has a peak wavelength of half this value. Is X hotter or colder than the sun and by how much? 2. Relevant equations Wiens law Max= c/t where c is a constant equal to 2897 and t is the temp in kelvin 3. The attempt at a solution I know I'm suppose to divide when trying to find out the peak wavelength, but it's given so I'm assuming I have to multiply in order to find the temp except I can't figure out the equation. Any help would be appreciated.