Equinox
01
الاعتدال, نقطة الاعتدال
(astronomy) either of the two celestial points at which the celestial equator intersects the ecliptic
02
الاعتدال, نقطة الاعتدال
either of the two moments in a year when the Sun, in its apparent motion along the ecliptic, crosses the celestial equator, resulting in approximately equal periods of daylight and darkness worldwide
أمثلة
The equinoxes are important for astronomers studying the Earth's tilt and orbit.
الاعتدالان مهمان لعلماء الفلك الذين يدرسون ميل ومدار الأرض.
