An asteroid is a rock that is far smaller than a planet or dwarf planet. They have no atmosphere. They may circle a sun or a planet.
planets are apart and help are solar system and asteroids hit are planets
Asteroids are all different shapes and sizes.
No Asteroids are too small to be considered planets.
Pluto is different from the inner planets in that it has not cleared it's orbit from asteroids.
A star, planets, satellites of the planets, asteroids, meteors, comets, dust particles and also vacuum.
are asteroids smaller or larger than planets
Planets are larger and more massive than asteroids, but very nearly the same size and mass as planets.
Asteroids
Planets, the sun, asteroids, comets, satellites from the different planets, gases, rocks, etc.
Asteroids and Comets
planets, asteroids, comets, dwarf plantets
ordinary planets are a big part of the solar system dwarf planets aren't that important they are considered like stars or asteroids but mainly dwarf planets