These chunks of rock & ice form a ring
around the Sun between the orbits of Mars & Jupiter. Few of them are more
than a few kilometres across & have highly irregular shapes. As most of them
have a low albedo they are very difficult to see by astronomers from the Earth.
Here I have put a few images of some of
them
Asteroid 243
Ida Ida -
Dactyl (Gallileo
28-08-93) Mathilde, Gaspra, Ida
(Galileo 27-06-97)