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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 16 Cygni Bb ： ウィキペディア英語版 16 Cygni Bb 16 Cygni Bb or HD 186427 b is an extrasolar planet approximately 69 light-years away in the constellation of Cygnus.〔(The Discovery of a Planetary Companion to 16 Cygni B ), W. D. Cochran, A. P. Hatzes (Univ. Texas), R. P. Butler, G. W. Marcy (SFSU and U. C. Berkeley), (Submitted on 27 Nov 1996)〕 The planet was discovered orbiting the Sun-like star 16 Cygni B, one of two solar-mass () components of the triple star system 16 Cygni. It makes one revolution every 799 days and was the first eccentric Jupiter and planet in a triple star system to be discovered. == Discovery == In October 1996 the discovery of a planetary-mass companion to the star 16 Cygni B was announced, with a mass at least 1.68 times that of Jupiter (). At the time, it had the highest orbital eccentricity of any known extrasolar planet. The discovery was made by measuring the star's radial velocity. As the inclination of the orbit cannot be directly measured and as no dynamic model of the system was then published, only a lower limit on the mass could then be determined.〔〔 〕 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「16 Cygni Bb」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.