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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Globular Cluster M69 ： ウィキペディア英語版 Messier 69 Messier 69 (also known as M69 or NGC 6637) is a globular cluster in the constellation Sagittarius. It was discovered by Charles Messier on August 31, 1780, the same night he discovered M70. At the time, he was searching for an object described by LaCaille in 1751–2 and thought he had rediscovered it, but it is unclear if LaCaille actually described M69. M69 is at a distance of about 29,700 light-years away from Earth and has a spatial radius of 42 light-years. It is a close neighbor of globular cluster M70, with 1,800 light-years separating the two objects; both of these clusters lie close to the galactic center. It is one of the most metal-rich globular clusters known. ==Gallery== File:Cosmic riches.jpg|As globular clusters go, M69 is one of the most metal-rich on record. File:M69map.png|Map showing location of M69 (Roberto Mura) 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「Messier 69」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.