
Click! to Play the Video
The Sun is the star at the center of the Solar System. The Earth and other matter (including other planets, asteroids, meteoroids, comets, and dust) orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass. The mean distance of the Sun from the Earth is approximately 149,598,000 kilometers (92,956,000 mi), and its light travels this distance in 8 minutes and 19 seconds. But it varies throughout the year from a minimum of 147,100,000 kilometers (91,400,000 mi) on 3 January, to a maximum of 152,100,000 kilometers (94,500,000 mi) on 4 July. Energy from the Sun, in the form of sunlight, supports...