Tuesday, January 21, 2014

1. Sun


The sun is a star. A star does not have a solid surface, but is a ball of gas (hydrogen (H2) and helium (He)) held together by its own gravity. The sun is the center of our solar system and makes up 99.8% of the mass of the entire solar system. If the sun were as tall as a typical front door, Earth would be about the size of a nickel.




Sun is a only star in a Solar System.
2. Mercury
 
Mercury is a closest planet to a Sun in Solar System. Also,  Mercury is a smallest planet in the Solar System. Mercury doesn't have an air and water, so its so arid. The temperature of daytime and night make really big gap. Mercury has a lot of creators, so its similar with moon. Because the Mercury is very close to a Sun its revolution speed is really fast. Revolution cycle is only 88 nights and it's the fastest planet that revolve. Also it's hard to find in earth. Finally, Mercury doesn't have the satelliite.
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There are many creators in Mercury surface.
3. Venus 
 
 
 
Venus is the goddsee of love and beauty. The planet is so named probably because it is the brightest of the planets known to the ancients. Venus is only a little smaller than Earth. Venus is the second closest planet to the sun at a distance of about 108 million km. Venus is a rocky planet, also known as a terrestrial planet. Venus' solid surface is a cratered and volcanic landscape.


 


 
Venus is a rocky planet as you see.
4. Earth

 
 
Earth is the third planet from the sun at a distance of about 150 million km. One day on Earth takes 24 hours (this is the time it takes the Earth to rotate or spin once). Earth makes a complete orbit around the sun (a year in Earth time) in about 365 days. Earth is a rocky planet, also known as a terrestrial planet, with a solid and dynamic surface of mountains, valleys, canyons, plains and so much more. What makes Earth different from the other terrestrial planets is that it is also an ocean planet: 70 percent of the Earth's surface is covered in oceans. 


 
Earth is a planet that only has water.
5. Mars
 
 
 
Mars orbits our sun, a star. Mars is the fourth planet from the sun at a distance of about 228 million km. One day on Mars takes just a little over 24 hours. Mars makes a complete orbit around the sun in 687 Earth days. Mars is a rocky planet, also known as a terrestrial planet. Mars' solid surface has been altered by volcanoes, impacts, crustal movement, and atmospheric effects such as dust storms.




 
Mars has many dust storms and the suface of Mars  is rocky.
6. Jupiter.




Jupiter orbits our sun, a star. Jupiter is the fifth planet from the sun at a distance of about 778 million km. One day on Jupiter takes about 10 hours. Jupiter makes a complete orbit around the sun in about 12 Earth years (4,333 Earth days). Jupiter's atmosphere is made up mostly of hydrogen (H2) and helium (He). Jupiter is a gas-giant planet and therefore does not have a solid surface.
 
Jupiter is surrounded by a little ring.

7. Saturn
 
Saturn orbits our sun, a star. Saturn is the sixth planet from the sun at a distance of about 1.4 billion km. One day on Saturn takes 10.7 hours. Saturn makes a complete orbit around the in 29 Earth years.
 Saturn's atmosphere is made up mostly of hydrogen (H2) and helium (He). Saturn is a gas-giant planet and does not have a solid surface.
 

As you can see Saturn's ring is not full of ring, is full of stones.