Solar System, technical/Asteroid belt

The asteroid belt is between 2 and 3.2 astronomical units from the Sun.

VestaEdit

 
Vesta
  • diameter= 530 kilometres
  • features= Veneneia basin

Vesta may have been melted 4.5 mya and it is believed to once have volcanic activity.[1] Smaller asteroids may have deposited carbon material to Vesta, contrasting its bright color.[1]

Vesta doesn't have enough gravity to form it into a complete sphere, which is why it is not a dwarf planet.

The Dawn spacecraft has visited Vesta as one of its objectives.

Main belt cometsEdit

 
Main belt comet P/2010 A2. Its base is 140 meters across.

These are comets that are within the asteroid belt. Only a handful of main belt asteroids have been discovered. It is uncertain what causes these objects to have a trail, but this event only occurs for a few days at a time.[2]

ReferencesEdit

  1. 1.0 1.1 Carbon in Vesta's craters, Max-Planck-Gesellschaft, 2013
  2. Discovering the birth of an asteroid trail, Plataforma SINC, 2013