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Messier 107
Globular Cluster M107 (also known as Messier Object 107 or NGC 6171) is the last globular cluster in the Messier Catalogue. It is a very loose globular cluster in the constellation Ophiuchus. It was discovered by Pierre Méchain in April 1782 and independently by William Herschel in 1793. It wasn't until 1947 that Helen Sawyer Hogg added it and three other objects discovered by Méchain to the list of Messier objects. M107 is close to the galactic plane at a distance of about 20,900 light-years from Earth.〔 There are 25 known variable stars in this cluster. ==Gallery==
File:The globular star cluster Messier 107.jpg|The globular star cluster Messier 107 image taken by the Wide Field Imager (WFI) on the MPG/ESO 2.2-metre telescope. File:M107map.png|Map showing the location of M107.
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 107」の詳細全文を読む
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