RR Ursae Minoris
Star
RR Ursae Minoris, abbreviated RR UMi, is a binary star system in the northern circumpolar constellation of Ursa Minor. It can be viewed with the naked eye, typically having an apparent visual magnitude of around 4.710. Wikipedia
Magnitude: -0.78
Constellation: Ursa Minor
Apparent magnitude (V): -0.78
Absolute magnitude (MV): −1.11
Radial velocity (Rv): 6.21±0.30 km/s