Chu Kỳ trong Vũ Trụ | Tri thức nhân loại

#humankindknowledge #science An orbital period is the time it takes a celestial body to complete one orbit around a central celestial body. In astronomy, it can be planets or asteroids orbiting the Sun, satellites orbiting planets, exoplanets orbiting other stars or binary stars. For celestial bodies in general, the stellar period (astronomical year/month) is considered the true orbital period, defined by one 360° rotation of the orbital body around the central celestial body, such as the Earth orbiting the Sun, relative to the fixed stars on the celestial sphere. Orbital periods can also have many different definitions. Periods in astronomy can be expressed in suitable units of time, usually hours, days, months or years. A period can also be defined under a specific astronomical condition, mostly caused by small gravitational influences from outside the system by other celestial bodies. These variations also include the actual position of the center of gravity between two celestial bodies, disturbances by extrasolar planets, orbital resonances, general relativity effects... These issues are studied by detailed and complex astronomical theories of celestial mechanics, and using precise observation data of the positions of celestial bodies of astrometry. ************************* Only 10k/month to join as a member of the Human Knowledge channel to support the costs for the channel to continue making scientific videos. Please click the "Join" button next to the "Register" button to support Human Knowledge.    / @trithucnhanloai   ************************************ We would like to sincerely thank the members of "The Sun" below for their financial support so that the Tri Thuc Nhan Loai channel can continue to make educational videos, serving the Vietnamese people in particular, and all those who have a need to learn in general: 1/ Owner of the YouTube channel "Thanh xivi" (   / @cuahangyenlang  ) ************************************ Videos about Information Technology    • Giải thích bộ nhớ RAM | Bộ nhớ RAM là gì ?...   Videos about Astronomy Learn    • Thiên Văn Học Vũ Trụ   Computer Science Videos    • Giải thích bộ nhớ RAM | Bộ nhớ RAM là gì ?...   Electrical & Electronics Videos    • Inverter là gì? | Biến tần là gì? | Invert...   How It Works Videos    • Điện thoại di động hoạt động như ...   Videos explaining the phenomenon of Nhien    • Thuỷ triều được hình thành như th...   Videos on General Knowledge    • Canh bạc kinh tế đằng sau đăng cai thế vận...   Videos on Medical Knowledge    • Đột quỵ diễn ra như thế nào? | Ta...   Videos on Principles of Công    • TIẾNG GỌI PHIÊU LƯU - NGUYÊN TẮC ĐỂ THÀNH ...   ************************************ Watch more videos of Tri Thuc Nhan Loai via the link below:    / @trithucnhanloai   Please click the Subscribe button above to receive notifications of the latest videos.