Wien'sLaw(维恩位 九m·T=b 移定律) b=2.898×103(mK We can measure the surface temperature of stars by its Size of Star LI peak of Size of Earth's Orbit Size of Jupiters Or radiation Atmosphere of Betelgeuse HST·FOC curve PRC6-04·sT5clOP0·Januery15,1995·A,Dupr99Ct),MAsA Wien’s Law（维恩位 移定律） We can measure the surface temperature of stars by its peak of radiation curve