4 Ursae Minoris is a spectroscopic binary star in the constellation Ursa Minor. Its apparent magnitude is 4.81. Located approximately 140 parsecs (460 ly) distant, the primary is a red giant of spectral type K3III, a star that has used up its core hydrogen and is expanding.
- ^ a b c d "4 Ursae Minoris". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 4 October 2014.
- ^ Scarfe, C. D. (1971). "A Revised Orbit for 4 Ursae Minoris". Publications of the Astronomical Society of the Pacific 83: 807. doi:10.1086/129218.