翻訳と辞書 Words near each other ・ R Horologii ・ R Hydrae ・ R interface ・ R Is for Rocket ・ R J Balson & Son ・ R J Peters Stakes ・ R J Vincent ・ R J Whitwell ・ R K Global ・ R K Hegde ・ R K Joshi ・ R K Puram (Delhi Assembly constituency) ・ R League ・ R Leonis ・ R Leonis Minoris ・ R Leporis ・ R Line (RTD) ・ R Lyrae ・ R M A Kingswell ・ R M Groves ・ R M Turton & Co (in liq) v Kerslake & Partners ・ R Maher (rugby league) ・ R Martin & Co Building ・ R McKellar ・ R Microscopii ・ R Monocerotis ・ R Muscae ・ R N Mukhija ・ R Normae ・ R P S Inter College 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 R Leporis ： ウィキペディア英語版 R Leporis R Leporis (R Lep), sometimes called Hind's Crimson Star,〔 is a well-known variable star in the constellation Lepus, near its border with Eridanus. It is designated "R" in the chart to the right.〔 It is a carbon star which appears distinctly red. It is named after famous British astronomer J. R. Hind, who observed it in 1845. Its apparent magnitude varies from +5.5 to +11.7 with a period of 418–441 days; recent measurements give a period of 427.07 days. There may be a secondary period of 40 years.〔 R Leporis has often been reported as an intense smoky red color, although this is not pronounced when the star is near its maximum brightness. It is reddest when it is dimmest, which occurs every 14.5 months. During these periods it is a candidate for the most-visible reddest star, but this claim is questionable. The red coloration may be caused by carbon in the star's outer atmosphere filtering out the blue part of its visible light spectrum. The star's discoverer, Hind, reported that it appeared "like a drop of blood on a black field."〔p. 269, (''Star-names and their meanings'' ), Richard Hinckley Allen, New York: G. E. Stechert, 1899.〕 ==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「R Leporis」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.