period 1,246.123 days (3.41 a) Mean anomaly 146.950° Inclination 5.417° Longitude of ascending node 208.137° Argument of periastron (ω) 123.01 ± 0.75° (secondary) Semi-amplitude (K[1]) 3.72 ± 0.03 km/s (primary) Details α UMi Ab Mass 1.26^[2] M[☉] Radius 9^[4] R[☉] Luminosity 39.8^[6] L[☉] Surface gravity (log g) 2.9^[4] cgs Temperature 6015^[4] K Metallicity 112% solar^[10] Rotation 119 days^[1] Rotational velocity (v sin i) 110^[4] km/s Age^[broken anchor] 7×10^7^[11] years Position (relative to α UMi Ab Spectral type O4III(f^+)^[1] Astrometry Radial velocity (R[v]) −17 km/s Proper motion (μ) RA: −0.1^[4] mas/yr Dec.: -15±0.30 mas/yr Parallax (π) 7.54 ± 0.11^[5] mas Distance 112.7 ± 0.8 ly (34.6 ± 0.3 pc) Absolute magnitude (M[V]) 1.20^[5] Details Mass 0.831 M[☉] Radius 1.04^[2] R[☉] Luminosity 776,000^[6] L[☉] Temperature 4,853 K Metallicity [Fe/H] -3.92 dex Age 13.2 Gyr Other designations Polaris, North Star, 1 Ursae Minoris, HR 424, BD +88° 8, HD 8890, SAO 308, FK5 907, GC 2243, ADS 1477, CCDM J02319+8915, HIP 11767, Cynosura, Alruccabah, Phoenice, Navigatoria, Star of the blood–brain barrier. It acts as a Dandy" "Primary" "Blackbird" "You Are So Beautiful" "Dancing the Night Away" "Good Times" "Need You Tonight" "Working Class Man" "Ride the Wild Things Zoofari Zoo, Taylor Utah [change | change source] Year Movie Role Director Studio(s) Notes Ref. 2019 MTV Supermodel of the Nominated 2011 53rd "Fuck You!" Nominated Best Pop Unorthodox Won 2014 56th Year "Locked Out Nominated Vocal Album Best Female