V* V571 Per

[ α=3.2h, δ=38.1° | M5: | d=640.2 pc ]
HD 19664 , HIP 14824 , TYC 2848-402-1
Best fit:
Tstar = 2960 ± 40 K , Lstar = 3800 ± 700 LSun , Rstar = 240 ± 20 RSun