翻訳と辞書 Words near each other ・ II liga (Poland) ・ II liga Rugby ・ II liga zapad ・ II liiga ・ II Lyga ・ II Marine Expeditionary Force ・ II Mundialito de Seniors ・ Ii Naochika ・ Ii Naokatsu ・ Ii Naomasa ・ Ii Naomori ・ Ii Naonori ・ Ii Naosuke ・ Ii Naotaka ・ Ii Naotora ・ II Pegasi ・ II Premios Feroz ・ II Queen Elisabeth Music Competition ・ II Royal Bavarian Corps ・ II Royal Bavarian Reserve Corps ・ II SS Panzer Corps ・ Ii Station ・ II Taso ・ II Tone Committee ・ II Trill ・ II Tru ・ II World Cup of Masters ・ II Zwicky 73 ・ Ii, Finland ・ II-VI semiconductor compound Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク II Pegasi ： ウィキペディア英語版 II Pegasi II Pegasi is a binary star system in the constellation of Pegasus with an apparent magnitude of 7.4 and a distance of 130 light years. It is a very active RS Canum Venaticorum variable (RS CVn), a close binary system with active starspots.〔 The primary (II Pegasi A) is a cool subgiant, an orange K-type star. It has begun to evolve off the main sequence and expand.〔 Starspots cover about 40% of its surface. The star produces intense flares observable at all wavelengths.〔 Its smaller companion (II Pegasi B) is too close to have been observed directly. It is a red dwarf, an M-type main sequence star. The stars are tidally locked in a very close orbit with a period of 6.7 days and a separation of a few stellar radii.〔 X-ray flares from II Pegasi A were observed with the Ariel 5 satellite in the 1970s and with later x-ray observatories. In December 2005 a superflare was detected by the Swift Gamma-Ray Burst Mission.〔 It was the largest stellar flare ever seen and was a hundred million times more energetic than The Sun's typical solar flare. ==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「II Pegasi」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.