* alf UMi

[ α=2.5h, δ=89.3° | F8Ib | d=132.6 pc ]
* 1 UMi , * alf UMi , HD 8890 , HIP 11767 , HR 424 , NAME Lodestar , NAME North Star , NAME Polaris , TYC 4628-237-1
Best fit:
Tstar = 5940 ± 20 K , Lstar = 2440 ± 70 LSun , Rstar = 46.6 ± 0.8 RSun