S-type asteroid facts for kids
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433 Eros, an example of an S-type asteroid
An S-type asteroid is an asteroid that is mainly silicaceous, or made of a lot of silicon. This is why it is called an S-type. About 17% of all asteroids are this type of asteroid, meaning that they are the second most common after C-type asteroids.
S-type asteroids are the most common asteroid in the inner main belt, but become very rare farther out in space. The biggest asteroid of this type is 15 Eunomia.
See also
In Spanish: Asteroide de tipo S para niños
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S-type asteroid Facts for Kids. Kiddle Encyclopedia.