Hey.. need some help in solving this problem:(adsbygoogle = window.adsbygoogle || []).push({});

Q) The luminosity of Polaris is 10,000 times the luminosity of the sun. The surface temperature of Polaris is about 5800 kelvins. Using k=33,640,000 find how the diameter of polaris compares with the diameter of the sun. ( Equation: D= (K)(sqrt of L ) / (T)^2

Dp/Ds = ( k(sqrt of Lp ) / (Tp)^2 ) / ( k(sqrt of Ls) / (Ts)^2 )

= ( sqrt of 10,000Ls ) / (5800)^2 / ( sqrt of Ls ) / (Ts)^2)

Now i'm stuck.. Not sure what this problem is leading to.. i dont know the value of Ts and hence am not gonna get an answer.. Any help is much appreciated..

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# Homework Help: Luminosity of Polaris

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