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GRB 100621A
GRB 100621A was a gamma-ray burst observed on June 21, 2010, by the Swift spacecraft.〔http://gcn.gsfc.nasa.gov/reports/report_291_1.pdf〕 It is the second brightest gamma-ray burst yet observed, after GRB 130427A.〔SpaceRef.com (Record-Breaking X-ray Blast Briefly Blinds Space Observatory ) European Southern Observatory - Wednesday, July 14, 2010〕 The distance is reported to be approximately five billion light years, far outside our own Milky Way Galaxy. ==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「GRB 100621A」の詳細全文を読む
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