Asteroids

physical properties, location, & movement

The Asteroid Belt

  • Most asteroids today lie in the Asteroid Belt between Mars and Jupiter.
  • Sometimes, asteroids can be slowed and switch direction.
  • When one asteroid runs into another on the belt, the asteroids will break into many pieces.
  • 19,400,000 miles wide

What Is An Asteroid Made Of?

  • Asteroids closer to sun: carbon
  • Asteroids farther away from the sun: silicate rock
  • Metallic asteroids: 80% iron and a mixture of 20% nickel, iridium, palladium, platinum, gold, and other precious metals

How Asteroids Move

Physical Properties

  • Asteroids are mainly are sized from a few meters wide to about 590 miles wide.
  • The largest asteroid is Ceres which is about 590 miles wide.
  • The smallest asteroid, 1991 BA is only about 20 feet wide.
  • Asteroids color varies based on type.
  • C- greyish
  • S- green/red
  • M- red
  • Most irregularly shaped (Ceres is almost round) and have craters.
  • Average temp: -100 degrees F
  • Video with close up images and asteroids http://science.howstuffworks.com/4956-the-planets-asteroids-video.htm
Big image