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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 HR 7703 ： ウィキペディア英語版 HR 7703 HR 7703 (Gliese 783, 279 G. Sagittarii) is a binary star system in the constellation of Sagittarius. The brighter component has an apparent visual magnitude of 5.31,〔 which means it is visible from suburban skies at night. The two stars are separated by an angle of 7.10″, which corresponds to an estimated semimajor axis of 56.30 AU for their orbit.〔 Based upon an annual parallax shift of 0.16625 arc seconds as measured by the Hipparcos satellite, this system is from Earth. It is approaching the Solar System at a velocity of approximately 129 kilometers per second.〔 At this rate, it will make its closest approach in 41,100 years when it comes to within of the Sun.〔 This star system has been examined for an excess of radiation in the infrared, The presence of an infrared excess can be taken as an indication of a debris disk orbiting the star. However, no such excess was discovered around HR 7703.〔 Radial velocity data collected over a period of 12 years was examined for signs of periodicity caused by a planet orbiting at a distance of 3–6 AU, but none was detected.〔 ==In popular culture== *In the ''Defiance'' TV series episode "Of a Demon in My View", the Omec ship Tsuroz was in this system in 1978 when they picked up a radio signal from Earth. 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「HR 7703」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.