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:''For other star systems with this Bayer designation, see Xi Centauri.'' Xi2 Centauri (ξ2 Cen, ξ2 Centauri) is a double star in the constellation Centaurus. It is approximately 470 light years from Earth. The primary component, ξ2 Centauri A, is a blue-white B-type main sequence dwarf with an apparent magnitude of +4.27. Its companion, ξ2 Centauri B, is a tenth magnitude yellow-white F-type dwarf. The two stars share a common proper motion, indicating they may be gravitationally bound. ==References== *http://server3.wikisky.org/starview?object_type=1&object_id=884 *http://www.alcyone.de/cgi-bin/search.pl?object=HR4942 *http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HR+4942&submit=SIMBAD+search 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「Xi2 Centauri」の詳細全文を読む スポンサード リンク
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