وفر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.

اشترك الآن

تمت عملية الاشتراك بنجاح

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عذراً، عذرا،أنت مشترك مسبقاً بالنشرة البريدية

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عذراً، هناك مشكلة في البريد الالكتروني

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فضاء وفلك

التربيع الأخير |  Third Quarter

18 يوليو 2019


يأتي بعد البدر، وهو مشابه للتربيع الأول ولكن يأتي في النصف الأخير من الشهر. نرى نصف سطح القمر مضاءً، ويأتي بعد الأحدب المتناقص، أي بعد البدر.