Ls=4 π (((1.496 (10^11)))^2)1370
Ms=-26.8+5-5Log10[(1/206265.)]

Ts=((((Ls/(4π (((6.96 (10^8)))^2) 5.67 (10^(-8))))))^0.25)

L=Ls (10^(0.4 (Ms+1.0)))

T=((((L/(4π 81(((6.96 (10^8)))^2) 5.67 (10^(-8))))))^0.25)