翻訳と辞書 Words near each other ・ NGC 119 ・ NGC 12 ・ NGC 120 ・ NGC 121 ・ NGC 122 ・ NGC 123 ・ NGC 1232 ・ NGC 1234 ・ NGC 124 ・ NGC 1260 ・ NGC 1261 ・ NGC 1265 ・ NGC 1275 ・ NGC 1277 ・ NGC 1288 ・ NGC 129 ・ NGC 1291 ・ NGC 13 ・ NGC 1300 ・ NGC 1309 ・ NGC 1313 ・ NGC 1316 ・ NGC 1333 ・ NGC 134 ・ NGC 1342 ・ NGC 1350 ・ NGC 1360 ・ NGC 1365 ・ NGC 1398 ・ NGC 1399 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 NGC 129 ： ウィキペディア英語版 NGC 129 NGC 129 is an open cluster in the constellation Cassiopeia. It was discovered by William Herschel in 1788. It is located almost exactly halfway between the bright stars Caph (β Cassiopeiae) and γ Cassiopeiae. It is large but not dense and can be observed by binoculars, where the most obvious is a small triangle of stars of magnitude 8 and 9, located in the center of the cluster. NGC 129 contains several giant stars. The brightest member of the cluster in DL Cassiopeiae, a binary system which contains a Cepheid variable with 8,00 days period. Using the fluctuations of the brigthness of DL Cassiopeia from 8,7 to 9,28, Gieren and al in 1994 determined the distance of NGC 129 at 2034 ±110 kpc (6.630 ±360 ly), quite larger than the distance obtained by Turner et al (1992), who obtained distance of 1,670 ±13 pc, from ZAMS fitting of the cluster. A possible cause of this difference is the different level of obstruction of light and star reddening of the stars of the cluster. One more cepheid variable, V379 Cas, is also a possible member of NGC 129. == 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「NGC 129」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.