نظير (علم الفلك)

رسم بياني يوضح العلاقة بين النظير وسمت الرأس وأنواع مختلفة من الآفاق. لاحظ أن النظير هو عكس سمت الرأس.

النظير^[1] أو سمت القدم^[1] أو نظير السَّمت^[1] هي النقطة التي تبعد عن سمت الرأس بزاوية قدرها 180º، أي النقطة الممتدة عموديا من تحت قدمي الراصد بحيث تمر في مركز الكرة الأرضية باتجاه الفضاء الخارجي.^[2]^[3]^[4]

مراجع

^ ^ا ^ب ^ج إدوار غالب (1988). الموسوعة في علوم الطبيعة: تبحث في الزراعة والنبات والحيوان والجيولوجيا (بالعربية واللاتينية والألمانية والفرنسية والإنجليزية) (ط. 2). بيروت: دار المشرق. ج. 2. ص. 811. ISBN:978-2-7214-2148-7. OCLC:44585590. OL:12529883M. QID:Q113297966.
^ "Arabic Dictionary Online Translation LEXILOGOS >>". www.lexilogos.com. مؤرشف من الأصل في 2018-07-19.
^ Encyclopædia Britannica. 1911. ص. 149. مؤرشف من الأصل في 2019-02-27. اطلع عليه بتاريخ 2012-03-23.
^ Le، Tao؛ Bhushan, Vikas؛ Skapik, Julia (2007). First Aid For The USMLE Step 2 CK (ط. 6th). New York: McGraw-Hill Medical. ص. 479. ISBN:9780071487955. مؤرشف من الأصل في 2020-01-26. اطلع عليه بتاريخ 2012-03-23.

انظر أيضا

هذه بذرة مقالة عن موضوع علمي بحاجة للتوسيع. فضلًا شارك في تحريرها.

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