متى يحدث الكسوف والخسوف ؟

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اخر تحديث : منذ بضع شهور

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كل شهر يتحرك القمر حول الأرض من جانبها المواجه للشمس (قمر جديد) إلى جانبها الآخر (بدر) ثم يعود وهكذا . فلماذا إذا لا يحدث خسوف للقمر وكسوف للشمس مرة كل شهر ؟ لأن مستوى دوران القمر يميل 5 درجات عن مستوى دوران الأرض ، كما أن مستوى دوران القمر يتغير . ونادرا ما يتقاطع مستوى دوران القمر مع مستويات دوران الأرض والشمس

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