Q:   What is the depth of the primary eclipse?  That will give us
                   (B_tot  -  B_pri)


              1.0  -  0.63  =  0.37


  Q:   What is the depth of the secondary eclipse?  That will give us
                   (B_tot  -  B_sec)


              1.0  -  0.83  =  0.17


  Q:   What is the ratio of the temperatures of the stars?


            (  TA  ) 4           0.37
            ( ---- )     =   --------------   =   2.18
            (  TB  )             0.17


               TA / TB   =    (2.18)^(1/4)    =   1.21