Carbonaceous Asteroids
Dark, primitive, carbon-rich (C-type and related) asteroids — the most common kind.
The largest object in the asteroid belt and the closest dwarf planet to the Sun — the first minor planet discovered, and the only one visited by the Dawn orbiter in the inner Solar System.
CategoryDwarf planetTypeCarbonaceous (C)Diameter939 kmDiscovered1801The third-most-massive asteroid, on a notably inclined orbit, the second minor planet ever discovered.
CategoryMain beltTypeCarbonaceous (C)Diameter513 kmDiscovered1802The fourth-largest asteroid and the largest carbonaceous one, nearly spherical, the parent of the Hygiea family.
CategoryMain beltTypeCarbonaceous (C)Diameter434 kmDiscovered1849One of the largest main-belt asteroids, a dark, primitive carbonaceous body.
CategoryMain beltTypeCarbonaceous (C)Diameter332 kmDiscovered1910One of the largest carbonaceous main-belt asteroids — not to be confused with Jupiter's moon Europa.
CategoryMain beltTypeCarbonaceous (C)Diameter315 kmDiscovered1858One of the largest main-belt asteroids, a dark carbonaceous body.
CategoryMain beltTypeCarbonaceous (C)Diameter289 kmDiscovered1903One of the largest asteroids, on a highly inclined orbit, the namesake of the Euphrosyne family.
CategoryMain beltTypeCarbonaceous (C)Diameter256 kmDiscovered1854A large outer-main-belt asteroid and the first asteroid found to have two moons — Romulus and Remus — making it the first known triple asteroid system.
CategoryMain beltTypeCarbonaceous (C)Diameter253 kmDiscovered1866A large carbonaceous outer-main-belt asteroid, parent of the Themis family, on whose surface water ice has been detected.
CategoryMain beltTypeCarbonaceous (C)Diameter198 kmDiscovered1853The namesake of the Hilda group, whose members orbit in a 3:2 mean-motion resonance with Jupiter in the outer main belt.
CategoryMain beltTypeCarbonaceous (C)Diameter170 kmDiscovered1875- 162173 RyuguPHA
A carbonaceous near-Earth asteroid visited by Japan's Hayabusa2, which returned surface and subsurface samples to Earth in 2020.
CategoryNear-EarthTypeCarbonaceous (C)Diameter900 mDiscovered1999 - 101955 BennuPHA
A small, carbon-rich near-Earth asteroid sampled by OSIRIS-REx, whose material was returned to Earth in 2023.
CategoryNear-EarthTypeCarbonaceous (C)Diameter490 mDiscovered1999