هي وحدة تقيس المسافة، ويستعملها علماء الفلك لقياس المسافة داخل المجموعة الشمسية. الوحدة الفلكية هي مقدار المسافة بين الشمس والأرض والتي تُقدّر بحوالي 149,597,870كم.
نستخدم ملفات تعريف الارتباط لتحسين تجربتك، استمرار استخدامك للموقع يعني موافقتك على ذلك. سياسة الخصوصيةأوافقX
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