Back كويكب نوع-S Arabic С-клас астероид Bulgarian Asteroide de tipus S Catalan Asteroide de tipo S Spanish S motako asteroide Basque سیارک نوع اس Persian S-tyypin asteroidi Finnish Astéroïde de type S French S-श्रेणी क्षुद्रग्रह Hindi Silikatni asteroid Croatian
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S-type asteroids are asteroids with a spectral type that is indicative of a siliceous (i.e. stony) mineralogical composition, hence the name. They have relatively high density. Approximately 17% of asteroids are of this type, making it the second-most common after the carbonaceous C-type.