Silicaceous Asteroids
Stony (S-type) asteroids, common in the inner main belt and among near-Earth objects.
The largest stony (S-type) asteroid and the parent of the Eunomia family in the intermediate main belt.
CategoryMain beltTypeSilicaceous (S)Diameter268 kmDiscovered1851The third asteroid ever discovered, a large stony main-belt body — one of the historic first four minor planets.
CategoryMain beltTypeSilicaceous (S)Diameter233 kmDiscovered1804The parent of the large Flora family of stony asteroids in the inner main belt.
CategoryMain beltTypeSilicaceous (S)Diameter136 kmDiscovered1847A near-Earth binary asteroid whose small moon, Dimorphos, was struck by NASA's DART in 2022 — humanity's first test of asteroid deflection.
CategoryNear-EarthTypeSilicaceous (S)Diameter780 mDiscovered1996A near-Earth asteroid famous for its very close but non-impacting approach to Earth on 13 April 2029; impacts for the foreseeable future have been ruled out by radar and tracking.
CategoryNear-EarthTypeSilicaceous (S)Discovered2004The first near-Earth asteroid discovered and the first to be orbited and landed on — by NASA's NEAR Shoemaker in 2000–2001.
CategoryNear-EarthTypeSilicaceous (S)Diameter≈ 34 × 11 × 11 kmDiscovered1898A small stony near-Earth 'rubble-pile' asteroid, the first body from which samples were returned to Earth, by Japan's Hayabusa in 2010.
CategoryNear-EarthTypeSilicaceous (S)Diameter≈ 535 × 294 × 209 mDiscovered1998A Koronis-family main-belt asteroid imaged by the Galileo spacecraft in 1993, which revealed its tiny moon Dactyl — the first confirmed asteroid moon.
CategoryMain beltTypeSilicaceous (S)Diameter≈ 60 × 25 × 19 kmDiscovered1884An elongated near-Earth asteroid in a chaotic, tumbling rotation, flown past by China's Chang'e 2 in 2012; it crosses both Earth's and Mars's orbits.
CategoryNear-EarthTypeSilicaceous (S)Diameter≈ 4.75 × 2.4 × 1.95 kmDiscovered1989One of the most elongated known asteroids, a near-Earth Apollo object well characterised by radar.
CategoryNear-EarthTypeSilicaceous (S)Diameter≈ 5.0 × 2.0 × 2.1 kmDiscovered1951