* a Cen

[ α=14.4h, δ=-39.5° | B2V | d=140.3 pc ]
* a Cen , HD 125823 , HIP 70300 , HR 5378 , TYC 7809-2783-1
Best fit:
Tstar = 18000 ± 200 K , Lstar = 1290 ± 80 LSun , Rstar = 3.7 ± 0.09 RSun