هو اختلاف المنظر بسبب تغير زاوية النظر. على سبيل المثال يتغير موقع نجم بالنسبة لراصد من الأرض بين الصيف والشتاء بسبب تغير موضع الأرض على مدارها حول الشمس.
نستخدم ملفات تعريف الارتباط لتحسين تجربتك، استمرار استخدامك للموقع يعني موافقتك على ذلك. سياسة الخصوصيةأوافقX
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