Now Viewing: sunTag type: General 太陽 (たいよう taiyō) The Sun usually appears as a bright circle/ball in the sky, ranging in color from white to yellow, orange, red and even purple at sunset. Use this tag if the Sun is used as a focal point or the actual subject of the image. "The Sun is the star at the center of the Solar_System. It is by far the most important source of energy for life on Earth. The Sun is a nearly perfect spherical ball of hot plasma, with internal convective motion that generates a magnetic field via a dynamo process. The diameter of the Sun is about 109 times that of Earth, and it has a mass about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, whereas the rest is mostly helium, and much smaller quantities of heavier elements, including oxygen, carbon, neon and iron. "The Sun is a G-type main-sequence star (G2V) based on spectral class and it is informally designated as a yellow dwarf . It formed approximately 4.567 billion years ago from the gravitational collapse of matter within a region of a large molecular cloud. Most of this matter gathered in the center, whereas the rest flattened into an orbiting disk that became the Solar System. The central mass became increasingly hot and dense, eventually initiating thermonuclear fusion in its core." From < en.wikipedia.org/wiki/Sun > See also: moon star_(sky) twilight dawn sunrise day dusk sunset night sunbeam Other Wiki Information Last updated: 03/19/15 6:55 PM by surveyork This entry is not locked and you can edit it as you see fit. |
     
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