Chi Ursae Majoris
Chi Ursae Majoris, formally named Taiyangshou, is a star in the constellation of Ursa Major. It is approximately 246 light-years from the Sun.Nomenclature
χ Ursae Majoris is the star's Bayer designation.
It bore the traditional name Tai Yang Show, "the Sun Governor", from Chinese astronomy. The name was possibly derived from the word 太陽守, Pinyin: Tàiyángshǒu, meaning Guard of the Sun, because this star is marking itself and standing alone in the Guard of the Sun asterism, Purple Forbidden enclosure. It also bore traditional names of Arabic origin: Alkafzah, Alkaphrah, and El Koprah.
In 2016, the IAU organized a Working Group on Star Names to catalog and standardize proper names for stars. The WGSN approved the name Taiyangshou for this star on 30 June 2017 and it is now so included in the List of IAU-approved Star Names.Properties
Chi Ursae Majoris is an evolved, orange hued K-type giant with an apparent magnitude of +3.69. This star has times the radius of the Sun and 1.49 times the Sun's mass.
The spiral galaxy in Ursa Major, NGC 3877, type Sc, is best found from Chi Ursae Majoris, which is almost exactly 15 arcminutes north of the galaxy.
