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The average asteroid is no bigger than a house, but there are millions that are the size of football fields. The smallest ones that we can detect are the size of boulders, and most orbit somewhere between Mars and Jupiter in the Main Belt. There are uncounted millions of small asteroids and meteoroids.
Estimated approximate number of asteroids larger than a given diameter:
100 m - 25 000 000
300 m - 4 000 000
500 m - 2 000 000
1 km - 750 000
3 km - 200 000
5 km - 90 000
10 km - 10 000
30 km - 1 100
50 km - 600
100 km- 200
200 km- 30
300 km- 5
500 km- 3
900 km- 1
The four largest contain 51% of the mass of all the asteroids. (Ceres alone is larger than the dwarf planet Pluto and more than 1/3 the mass of all athe asteroids)
What else can I help you with?
Where does the rocks come from on saturns rings?
They are from bigger asteroids. Two big asteroids crash into each other and little pieces come off the big asteroids.
What are the asteroids and where are they found in the solar system?
Asteroids are are big rocks floating in space. alot of asteroids can be found in the asteroid belt
Can asteroids be as big as our moon?
yes
What does asteroids mean?
it is a big ring of asteroids that separate 4 planets away from the rest!
What do asteroids do when they impact the Earth?
It depends how big
How big are asteroids and comics?
they are different sizes
How do you use asteroid in a sentence?
Scientists study asteroids to better understand the early solar system.
How do use asteroid in a sentence?
asteroids are big in the shape
What does the belt of asteroids look like?
Well, they look like a big belt of asteroids circling around planets or galaxy.
What do asteroids do when they hit earth?
make big holes in the earth!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is another name for asteroids?
Planetoids, or minor planets.
What are the size of asteroids and meteoroids?
They vary in size, but normally very big
