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Chi Ursae Majoris (Chi UMa, χ Ursae Majoris, χ UMa) is a star in the constellation Ursa Major. It has the traditional names Alkafzah, Alkaphrah, and El Koprah. Chi Ursae Majoris is an orange K-type giant with an apparent magnitude of +3.69. It is approximately 196 light years from Earth. This star has times the radius of the Sun.〔 In Chinese astronomy, Alkafzah is called Tai Yang Show, "the Sun Governor".〔(Richard Hinckley Allen: Star Names — Their Lore and Meaning: Ursa Major )〕 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 stand alone in ''Guard of the Sun'' asterism, Purple Forbidden enclosure (see : Chinese constellation). The Spiral Galaxy in Ursa Major, NGC 3877 (= H I.201), type Sc, is best found from Chi Ursae Majoris, which is almost exactly 15 arc minutes north of the galaxy. ==See also== * Ursa Major * Ursa Major Moving Group 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chi Ursae Majoris」の詳細全文を読む スポンサード リンク
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