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NGC 4845
NGC 4845 (also known as NGC 4910) is a spiral galaxy located in the constellation Virgo 47 million light years away. The galaxy was originally discovered by William Herschel in 1786.〔(【引用サイトリンク】title=NGC Objects: NGC 4800-4849 )〕 The galaxy has a supermassive black hole at its center with a mass of 300,000. In 2013, the ESA observed the black hole absorbing matter from a nearby, low-mass object; possibly a brown dwarf star. The observed X-ray flare was caught by the ESA's INTEGRAL telescope. ==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 4845」の詳細全文を読む
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