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Iota Cephei
Iota Cephei (ι Cep, ι Cep) is a Class K0, third-magnitude star in the constellation Cepheus. Iota Cephei is an orange giant star located about 115 light-years from Earth. This star has times the Sun's radius and about 1.8–2.2 times the mass of the Sun. It is emitting as much luminosity as the Sun, which is being radiated from its outer atmosphere at an effective temperature of .〔 Due to precession of the equinoxes, it will become the pole star some time around 5200 CE. == References ==
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「Iota Cephei」の詳細全文を読む
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