Sun

1. Sun

2. Interesting facts • The sun is 93 million miles away from earth. • The surface of the sun temperature is 10,000 degrees. • The core temperature of the sun is 22,000,000 degrees. • The diameter of the sun is 865000. 109 earths can fit around the earth. • Once every 25 days the sun moves. • The sun is a star found in the solar system • The sun makes up 99.86% of the solar system mass • The light on the sun reaches earth around every 8 minutes • The core of the sun is around 13600000 degrees Celsius • The only time when the solar eclipse occurs is when the moon is in between the sun and the earth.

3. Parts of the sun • The sun has 6 layers to it: • Corona- The core is the source of all of the suns energy. • Chromosphere- The chromosphere has a type of gas in it called spicules. • Photosphere- The photosphere is the lowest layer of the sun. it is the source of the sun light. • Core- The core is the hottest part of the sun. • Radiation zone- Energy travels through the Radiation zone. • Convection zone- The convection zone is full of hot gases.

4. The Sun • The Sun is a star that is found in the solar system, the sun takes up most of the solar system mass. (99 86%) • The Sun core is about 8 minutes for the sun to reach earth. • A solar eclipse occurs when the moon is between the earth and the sun. We are much more closer to the sun than any other star. • The Suns circumstance is 2,715,395 miles. The sun has six layers. • The sun is over one million times than the earth. • In the past people believed that the earth didn’t move, but the sun rotated around the earth. Millions of the earth can fit into the sun.

5. Sun spots • The sun may be extremely hot , but it does of course have cooler parts on it. This is what we call the sun spots. The sun spots are still very hot though. If you look at the sun with your bare eye not only it could damage you eyes but you could not see the sun spots. You won’t be able to see the sun spots unless you have a certain type of telescope that will prevent you from damaging your eyes. Sun spots come and go on a regular basis. They usually increase in intensity over a time period of 11 years. This is known as the Saros Cycle.

6. Characteristics/Physical features • The sun consists of around 70% of the hydrogen. 28% of helium and about 2% of metals such as iron. The sun is an almost spherical Shape.

7. Yohko solar • is a satellite that studies the sun and sends back x-ray images of the sun that you cant normally see.

8. SOHO solar • The SOHO, the solar and the Heliospheric observatory is the international collaboration between Nasa and Esa. It first started in 1995, December 2nd. It was built in Europe.

9. On this image that was taken by the school, you can see the darker spots on the sun which is called the sun spots.

10. Pictures

11. BIBLIOGRAPHY http://www.sciencekids.co.nz/sciencefacts/space/sun.html PEARSON science student book http://www.kidsastronomy.com/our_sun.htm http://fusedweb.llnl.gov/cpep/chart_pages/5.plasmas/sunlayers.html http://csep10.phys.utk.edu/astr162/lect/sun/sunspots.html