Asteroids
Both asteroids and moons can be rocky. An asteroid orbits the Sun while a moon orbits a planet. Mars has two moons (Deimos and Phobos) that are most likely former asteroids.
planets of course, or asteroids. both are rock
Not much. Earth is at 1 AU, by definition, and Mars is at about 1.5 AU. Between Mars and Jupiter (about 5 AU) there are no large planets; it is thought that Jupiter's gravity interfered with planets forming near it. Instead, there are billions of asteroids, which are of similar chemical makeup to the inner planets (i.e. mostly rocks and metals), but much smaller, ranging from smaller than a sand grain to the size of U.S. states. We have observed several thousand of the larger ones; these are irregularly-shaped rocky things the size of cities. The largest, Ceres, is almost 600 miles across and orbits between 2.54 and 2.98 AU. So, I suppose I could say that Ceres is at 3 AU, once every 4.5 (Earth) years. See http://en.wikipedia.org/wiki/Ceres_(dwarf_planet) for more about Ceres.
Comets are balls of ice and dust in orbit around the Sun. The orbits of comets are different from those of planets - they are elliptical. A comet's orbit takes it very close to the Sun and then far away again.
They are still called asteroids. But some refer to them as "rogue" asteroids, or "asteroids in irregular orbits".
Asteroids
maybe
fu
Apollo asteroids have elliptical orbits that cross Earth's orbit
Mainly to see if the asteroids are going to pose a collision danger with regards to the Earth.
Both asteroids and moons can be rocky. An asteroid orbits the Sun while a moon orbits a planet. Mars has two moons (Deimos and Phobos) that are most likely former asteroids.
Orbits of the planets Mars and Jupiter are closest to the region of asteroids.
no.....
The asteroids.
The asteroids.
An asteroid is a piece of moon that orbits the sun and a moon is a giant rock sphere that orbits earth