Encyclopedia > Asteroid belt

  Article Content

Asteroid belt

The "Asteroid Belt" is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. An asteroid belt describe the orbit of concentrated asteroids.

It is believed that, during the first million years of the solar system history, planets formed by accretion of planetesimals. Ripetute collisions led to the familiar rocky planets and to the gas giant's cores.

However, in this zone of the system the strong gravity of Jupiter inhibited the final stages and the planetesimals could not form a single planet.

Collisions between asteroids occur very often (in astronomical terms). A collision may fragment an asteroid in numerous small pieces (leading to the formation of a new asteroid family[?], or may glue two asteroids together if occurs at low relative speeds. After five billions of years, the current Asteroid belt population bears little resemblance to the original one.

See also: Asteroid, Asteroid family[?]



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Brewerton, New York

... for a household in the town is $43,061, and the median income for a family is $50,000. Males have a median income of $39,239 versus $27,654 for females. The per capita ...