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257 Silesia
257 Silesia is a large Main belt asteroid, about 73 kilometers in diameter. It was discovered by Johann Palisa on April 5, 1886 at Vienna Observatory, Austria. It is named after Silesia, the province of the discoverer's birthplace, now located in the Czech Republic. The by far largest part of Silesia nowadays belongs to Poland.〔 == 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「257 Silesia」の詳細全文を読む
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