翻訳と辞書 Words near each other ・ Alpha,alpha-trehalase ・ Alpha,alpha-trehalose phosphorylase ・ Alpha,alpha-trehalose phosphorylase (configuration-retaining) ・ Alpha,alpha-trehalose synthase ・ Alpha,alpha-trehalose-phosphate synthase ・ Alpha,alpha-trehalose-phosphate synthase (GDP-forming) ・ Alpha,alpha-trehalose-phosphate synthase (UDP-forming) ・ Alpha,N,O-TMS ・ Alpha,N-DMT ・ Alpha-1 adrenergic receptor ・ Alpha-1 antitrypsin ・ Alpha-1 blocker ・ Alpha-1,3-glucan synthase ・ Alpha Pegasi ・ Alpha Persei ・ Alpha Persei Cluster ・ Alpha Phi ・ Alpha Phi Alpha ・ Alpha Phi Delta ・ Alpha Phi Fraternity House-Beta Alpha Chapter (Champaign, Illinois) ・ Alpha Phi Gamma ・ Alpha Phi Gamma (sorority) ・ Alpha Phi Omega ・ Alpha Phi Omega (Philippines) ・ Alpha Phi Omega national conventions ・ Alpha Phi Sigma ・ Alpha Phi Sorority House (Eugene, Oregon) ・ Alpha Phoenicis ・ Alpha Pi Delta Sorority, Inc ・ Alpha Pi Mu 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 Alpha Persei Cluster ： ウィキペディア英語版 Alpha Persei Cluster The Alpha Persei Cluster, also known as Melotte 20 or Collinder 39, is an open cluster in the constellation of Perseus. To the naked eye, the cluster consists of several blue spectral type B type stars. The most luminous member is the ~2nd magnitude white-yellow supergiant Mirfak, also known as Alpha Persei. Bright members also include Delta, Epsilon, Psi, 29, 30, 34 and 48 Persei. The Hipparcos satellite and infrared color-magnitude diagram fitting have been used to establish a distance to the cluster of ~172 pc.〔van Leeuwen, F. ("Parallaxes and proper motions for 20 open clusters as based on the new Hipparcos catalogue" ), ''A&A'', 2009〕〔Majaess, D.; Turner, D.; Lane, D.; Krajci, T. ("Deep Infrared ZAMS Fits to Benchmark Open Clusters Hosting delta Scuti Stars" ), ''JAAVSO'', 2011〕 The distance established via the independent analyses agree, thereby making the cluster an important rung on the cosmic distance ladder. The age of this cluster is about 50-70 million years.〔Paunzen, E., Mermilliod, J.-C. ("WEBDA: Alpha Persei" )〕 ==Members== 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「Alpha Persei Cluster」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.