Asteroids are larger than Meteoroids.
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Asteroids larger than 1 km in diameter are known as planetesimals, while those over 100 km are considered minor planets. Asteroids larger than 1,000 km are usually classified as dwarf planets if they have enough mass for gravity to shape them into a round shape.
Planets are generally larger than asteroids. Asteroids are small rocky bodies that orbit the Sun, while planets are larger celestial objects that have cleared their orbit of other debris. Some asteroids can be quite large, but they are still dwarfed by the size of planets.
No. Asteroids are tiny compared to stars.
Yes
Yes. By definition a meteoroid is smaller than an asteroid.
Meteoroids are smaller than both comets and asteroids. They are small rocky or metallic objects that are typically smaller than asteroids and comets, which are large bodies that can range in size from several meters to hundreds of kilometers in diameter.