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Pi Centauri
Pi Centauri (π Cen, π Centauri) is a binary star in the constellation Centaurus. It is approximately 360 light years from Earth. Both components are blue-white B-type main sequence dwarfs. The primary π Centauri A, has an apparent magnitude of +4.3, while the apparent magnitude of its companion, π Centauri B, is +5.0. The two stars orbit around their common centre of mass once every 39 years.〔 The semi-major axis of the companion is 0.23 arcseconds on the sky. == 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「Pi Centauri」の詳細全文を読む
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