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HD 178911
HD 178911 is a triple star system in the constellation Lyra. The secondary star (designated as HD 178911 B) has an apparent magnitude of 6.74 and a spectral type of G1V, which is very similar to our Sun at a distance of 160 light years. The age of the star is slightly older and have significantly higher metallicity than our Sun. ==Stellar system== The HD 178911 system consists of HD 178911A and HD 178911B in a 1300 day orbit with HD 178911B being a more distant common proper motion companion. An additional companion HD 178911C is a chance optical alignment and is not part of the system.〔
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「HD 178911」の詳細全文を読む
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