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RCW103 is a supernova remnant with right ascension 16h17m30s and declination -52° 02′. It is approximately 2000 years old and contains x-ray source 1E 161348-5055 at its heart. It is 10,000 light years away in the constellation Norma (constellation). ==External links== * (Supernova Leaves Behind Mysterious Object ) (SpaceDaily) 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「RCW103」の詳細全文を読む スポンサード リンク
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