The Solar System

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by sherrillal
Last updated 7 years ago


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The Solar System

Summary: The sun is one of the many stars in our glaxay. Its one of the mainsequence stars out of more than 100 billion. It orbits some 25,000 light years from the galactic core, completing a revolution once every 250 million years or so. It may be just a normal star but it contains most of mass along with Jupiter, which is another thing that makes it unique. It may just be a ball of gas but it is more than that it is our source of energy without it we would have no source of energy. Which would be no light or electricity or plants. So the sun is a very important thing that we should know and not take for granted.

The Solar system paper- The sun!

By: Asia SherrillPeriod: 3

5 Key facts about the sun

Our Sun!!!

1) The Sun or Sol, is the star at the centre of our solar system and is responsible for the Earth’s climate and weather.2)The Sun is an almost perfect sphere with a difference of just 10km in diameter between the poles and the equator.3)The average radius of the Sun is 695,508 km (109.2 x that of the Earth) of which 20–25% is the core. With a Diameter of 1,392,684 km4)The suns Surface temperature is 5500 °C5)The sun is mostly composed of the elements hydrogen (H) and helium (He). By mass the composition of the sun is 75 percent hydrogen and 25 percent helium.

5 other interesting facts:1) The sun is larger than all the planets put together. It is the largest object in the solar system.2)It contains more than 99.8% of the total mass of the Solar System.3) The Sun is personified in many mythologies; The Greeks called it Helios, and the Romans called it sol.4)The outer layers of the Sun exhibit differential rotation: at the equator the surface rotates once every 25.4 days; near the poles it's as much as 36 days.5)The surface of the Sun, called the photosphere, is at a temperature of about 5800 K. Sunspots are cool regions, only 3800 K (they look dark only by comparison with the surrounding regions). Sunspots can be very big, as big as 50,000 km in diameter. Sunspots are caused by complicated and not very well understood interactions with the Sun's magnetic field.


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