4 Ursae Minoris

From Wikipedia, the free encyclopedia
Jump to: navigation, search
4 Ursae Minoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Ursa Minor
Right ascension 14h 08m 50.92654s [1]
Declination +77° 32′ 51.0466″ [1]

4 Ursae Minoris is a spectroscopic binary[2] 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,[1] a star that has used up its core hydrogen and is expanding.

References[edit]

  1. ^ a b c d "4 Ursae Minoris". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 4 October 2014. 
  2. ^ 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.