by tori b.
March 24, 2015 A-3
- Asteroid belts were first discovered in 1801. They were formed from a planet trying to form but the formation failed. All asteroids orbit around the Sun. Our main asteroid belt is in between the inner and outer planets.
- The average distance from the asteroid belt to the Sun is around 150 million km.
- Mass varies from asteroid to asteroid, but the mass is larger than meteoroids. All asteroids combined together have about 4% of the mass of the Moon.
- The rotation period varies by the different asteroids. For example, asteroid Ida takes 4.6 hours for one full rotation.
- Much like the rotation period, the revolution period depends upon the asteroid. Using the asteroid Ida again as and example,is=t takes Ida 4.8 Earth years to orbit around the Sun.
- Asteroids are mostly made of rock and metal.
- Asteroids also don't have an atmosphere.
- An interesting fact that you may not know is that asteroids may be grouped together in the "belt" between Mars and Jupiter; they can move outside of the asteroid belt.