Sun - Simple English Wikipedia, the free encyclopedia

sun The Sun is the star at the centre of the Solar System. It is a massive, nearly perfect sphere of hot plasma, heated to incandescence by nuclear fusion reactions in its core, radiating the energy from its surface mainly as visible light and infrared radiation with 10% at ultraviolet energies..

ảnh tài xỉu sunwin  The sun keeps the planets in its orbit with a tremendous gravitational force. What would happen if it disappeared entirely? Learn about the star at the center of our solar system, and how it is ...

sunwin mới nhất  SunCalc shows the movement of the sun and sunlight-phase for a certain day at a certain place. You can change the suns positions for sunrise, selected time and sunset see. The thin yellow-colored curve shows the trajectory of the sun, the yellow deposit shows the variation of the path of the sun throughout the year. The closer a point in the center, the higher the sun above the horizon. The ...