Cl Trumpler 37 54

[ α=21.2h, δ=56.9° | F8 | d=323.0 pc ]
TYC 3961-1754-1
Best fit:
Tstar = 5970 ± 30 K , Lstar = 7.1 ± 0.2 LSun , Rstar = 2.5 ± 0.04 RSun