Our Planets Solar System Mercury 1 st Planet

Our Planets Solar System

Mercury � 1 st Planet after the sun (36 MILLION miles!) � Size of the moon � Completes orbit around the sun in 88 days � Mostly iron

What makes a planet? A celestial body that orbits around a star (like our sun) 2. Is big enough that it forms into a shape of a sphere by its own gravity. 3. It also has to have a clear orbit with no other bodies of comparable size influencing its gravitational force. 1.

Venus � 2 nd planet from the sun � Size of Earth � Completes orbit in 243 days � Brightest light after the sun sets � Can get up to 863 degrees!

Earth � 3 rd planet from the Sun � Mostly covered in water. (75%!) � 365 days in a year � Has one satellite-the moon!

What is a satellite? �A satellite is a moon, planet or machine that orbits a planet or star. �For example, Earth is a satellite because it orbits the sun. Likewise, the moon is a satellite because it orbits Earth.

Mars � 4 th planet from the sun � Red because of all the rust on it � Same size as Earth � One year is 686 days � Has two satelites

Jupiter � 5 th planet from the sun � Is a gas planet � Largest planet- 318 Earths could fit in it! � Has 16 satelites

Saturn � 6 th planet from the sun � 2 nd largest planet � Orbits the sun every 29. 46 years � Is famous for its rings which is made of billions of pieces of rocks and dust � Has 21 satelites

Uranus � 7 th planet from the sun � Orbits the sun every 84 years � Is tilted! � Has 27 satellites � Some nights can last as long as 40 years!

Neptune � 8 th planet from the sun � Blue because of the methane gas � Orbits the sun every 164 years! � Has 8 satelites � It is the stormiest planet!