An Asteroid
Mercury, is the smallest planet that orbits the sun.
Asteroid - a small, rocky body that orbits the Sun.
A piece of rock or metal that is smaller than an asteroid and orbits the Sun is called a meteoroid. These objects are typically the remnants of asteroids or comets and can range in size from a grain of dust to a few meters in diameter. When a meteoroid enters Earth's atmosphere and burns up, it creates a meteor or "shooting star."
a planet
Pluto is a dwarf planet that orbits the Sun. It is not known to be a piece of something else.
"An asteroid is a piece of moon that orbits the sun and a moon is a giant rock sphere that orbits earth."
Its the suns surface
a planet
An asteroid is a small rocky object that orbits the sun. These celestial bodies are made up of rock and metal and can vary in size from just a few feet to hundreds of miles in diameter. Asteroids are mostly found in the asteroid belt between Mars and Jupiter, but some also orbit closer to Earth.
it's a piece of rock compreesed by gas to be made solid that orbits the sun
Comet.
A small rocky object that orbits the Sun in a belt between Mars and Jupiter is known as an asteroid. This region is commonly referred to as the asteroid belt, where thousands of these objects, composed mainly of rock and metal, reside. Asteroids vary in size and shape, and they are remnants from the early solar system that never coalesced into a planet.