1. Solar System

2. Simple Facts
Our solar system consists of nine planets orbiting around one sun.
Measurement in space: 1 astronomical unit (AU) = 150 million kilometers. (93 million miles)

3. THE SUN Photosphere- the brightest part of the sun
Chromosphere- gives off faint red light and cannot be seen
Corona- halo that surrounds the sun

4. The Sun
Each second our sun gives off as much energy as equal to that of 200 BILLION hydrogen bombs.
The sun makes up more than 99% of our Solar System.

5. Inner Planets- 4 Rock Planets
Mercury- the closest
planet to the sun
Venus (aka-Earth’s twin)- the hottest planet due to the cloud cover
Earth- the only planet
able to sustain life
Mars- the red planet

6. Outer Planets- 4 Gas planets
Saturn- has rings around it made of ice
Jupiter- Largest planet
Uranus- 7th planet
from the sun
Neptune- sometimes the
Furthest from the sun

7. Other Objects in Our Solar System
Meteors- Pieces of rock or metal that enters the earth’s atmosphere and burns.
Meteorite- Pieces of rock or metal that enters the earth’s atmosphere AND HITS THE EARTH.

8. Other Objects in Our Solar System
Comet- Large ball of ice, gas and dust flying through space.
Aka- Hairy star
According to some mythology, comets bring bad luck to those who look at them.
Scientists believe that comets make a huge circle through the universe. (ALWAYS takes the same path.)

9. Other Objects in Our Solar System
Asteroid- huge rocks or boulders in space.
The asteroid belt is located between the orbits of Mars and Jupiter.