Sun

The Sun By : Lauryn Hinthorne & Josie Stanford
Our Sun is the center of the solar system. It also is the largest thing in the solar system. It is a big ball of gas and fire. It is almost 3,000,000 degrees. It is 100 thousand miles wide and 3,000 miles long. It is 93,000,000 miles from Earth.The size of the star is a medium star.[But GIANT to us on Earth.]Diamiter=865,00 or 1,392,000 Km. The sun is so hot it can fri an egg in the dessert. The Sun never goes to rest. The sun has dark spots. It is darker and cooler than the rest of the star. Sun is the closest star to Earth. Sun rotates every 27 days. The Sun gives off host proment to Earth which supports life (to humans.) After a billion years as a red giant,it will suddenly calapse.(mayby}The sun is the most proment feature of our solar system.It contains approxmently 98% of the total solar system mass. 109 earths would be required to fit across the suns disk. Solar energy is created deep within the core of the sun. It is here that the tep.(15,000,000oC) and preshure(340 billion times earths air preshure at sea level!) Now thats a lot of pressure  converted into helium ashes. In the progress 5 million tons of pure energy relesed;therefore; as time goes on the sun is becoming lighter. The chromosphere is above the photosphere. Solar energy passes though this region on it"s way out from the center of the Sun. The Sun appears to have been active for 4.6 billion years and has enough fuel to go on for another 5 billion years or so. At the end of it's life the Sun will start to fuse helium into heavier elements and begin to swell up, ultimately growing so large that it will swallow the Earth. After a billion years as a red giant, it will suddenly collapse into a white dwarf- the final end product of a star like ours. Our Sun is a G2 star, 1 more of 1 billion stars in the milky way. The Sun is personified in many mythologies; the Greeks call it Helios and the Romans call it Sol. The Sun's power (about 389 billion billion mega Watts) is produced by nuclear fusion reactions. Each second about 700,000,000 tons of hydrogen are converted to about 695,000,000 tons of helium and 5 million tons (=3.86e33 ergs) of energy in the form of gamma rays. For the last 20% of the way to the surface the energy is carried more by convetion than by radiation.We think the Sun is the coolest planet in the Milky Way and the coolest star!