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Apsus Vallis is a channel in the Cebrenia quadrangle of Mars, located at 35.1° north latitude and 225° west longitude. It is 120 km long and was named after a classical river in ancient Macedonia, the present-day Seman River.〔http://planetarynames.wr.usgs.gov〕 == 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「Apsus Vallis」の詳細全文を読む スポンサード リンク
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