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Summary
Chapter-258 月での水の存在
月の半径は約1700キロメートルで地球の約4分の1。質量は約80分の1。重力は地球の6分の1しかありませんので、宇宙飛行士はフワフワ歩きます。大気はほとんどありません。地球からの距離はだいたい40万キロメートル。地球の周りを27日とちょっとで1周します。地球の周りを回っているにもかかわらず、いつも地球に対し同じ面を向けているのも特徴です。
月の半径は約1700キロメートルで地球の約4分の1。質量は約80分の1。重力は地球の6分の1しかありませんので、宇宙飛行士はフワフワ歩きます。大気はほとんどありません。地球からの距離はだいたい40万キロメートル。地球の周りを27日とちょっとで1周します。地球の周りを回っているにもかかわらず、いつも地球に対し同じ面を向けているのも特徴です。
(C)2009 くりらじ
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