翻訳と辞書 Words near each other ・ BCVO ・ BCVSMGCD ・ BCW Can-Am Heavyweight Championship ・ BCW Can-Am Tag Team Championship ・ BCW Can-Am Television Championship ・ BCWest Air ・ BCWipe ・ BCX ・ BCX4430 ・ BCZ ・ BD ・ BD +17° 3248 ・ BD +20°307 ・ BD -22°5866 ・ BD Bacatá ・ BD Camelopardalis ・ BD Cine ・ BD Performing Arts ・ BD postcode area ・ BD Somani International School ・ BD's Mongolian Grill ・ BD+ ・ BD+14°4559 ・ BD+14°4559 b ・ BD+20°1790 ・ BD+20°2457 ・ BD+40° 4210 ・ BD+43° 3654 ・ BD+48 740 ・ BD+60 2522 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 BD Camelopardalis ： ウィキペディア英語版 BD Camelopardalis BD Camelopardalis is an S star and symbiotic star in the constellation Camelopardalis. It was recognized as a spectroscopic binary star in 1922, and its orbital solution published in 1984;〔 〕 it has a 596-day orbital period. A spectroscopic composition analysis was done of the red giant primary star in 1986. ==Description== Although the star's spectrum shows the spectral features of zirconium oxide which define spectral class S, BD Cam shows no technetium lines in its spectrum. It is believed to be an "extrinsic" S star, one whose s-process element excesses originate in a binary companion star. The system displays only minimal variations in the visible, but the presence of the companion and its interactions with the stellar wind of the visible red giant makes for easily observed time-variable spectral features in the ultraviolet and in the near infrared spectral line of helium. At times BD Cam is the brightest S star in the visible sky, because other bright S stars are mira variables or other types of variable star with large changes in apparent brightness. Its own brightness variability in the visible part of the spectrum is modest. 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「BD Camelopardalis」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.