The Sun

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Information on the sun

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The Sun

  1. 1. The Sun By Mrs. Allen
  2. 2. I. Layers of the Sun <ul><li>The Core: The center of the sun where fusion takes place. </li></ul><ul><li>Radiation zone: energy flows from core. </li></ul><ul><li>Convection zone: energy circles back toward core and is then pushed back out by energy coming from radiation zone. </li></ul>
  3. 3. I. Layers of the Sun <ul><li>Photosphere: The layer from which light is given off. </li></ul><ul><li>Chromosphere: The layer that extends above the photosphere. </li></ul><ul><li>Corona: Largest layer of the suns atmosphere and extends millions of km. </li></ul>
  4. 4. II. Parts of the Sun <ul><li>Sunspots: Cool areas around the sun which are not permanent. </li></ul><ul><li>1. Caused by Magnetic Fields. </li></ul><ul><li>2. High numbers occur every 11 years. </li></ul><ul><li>3. Occur in pairs. </li></ul><ul><li>4. When 2 sunspots come together, prominences and flares are produced. </li></ul>
  5. 5. II. Parts of the Sun <ul><li>Prominences: Huge arching columns of gas. </li></ul><ul><li>Flares: Violent eruptions shooting outward from the sun at high speeds. </li></ul>
  6. 6. III. Characteristics of the Sun <ul><li>99% of all the matter in our solar system is in the sun. </li></ul><ul><li>The sun is the center of the solar system. </li></ul><ul><li>The sun is a main-sequence star. </li></ul><ul><li>The sun produces energy by fusion. </li></ul><ul><li>75% Hydrogen and 25% Helium fuse in the core. </li></ul><ul><li>Fusing means two atoms combine to form a heavier atom. </li></ul>
  7. 7. IV. Interesting Facts <ul><li>The sun is a G2 star. </li></ul><ul><li>The temperature of the core is 15.6 million Kelvin. </li></ul><ul><li>The sun is approximately 4.5 billion years old. </li></ul><ul><li>The sun emits a low-density stream of charged particles known as the solar wind. </li></ul><ul><li>Our sun is unique, not part of a binary system, 2 stars orbiting each other. </li></ul>

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