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C-type (carbonaceous / ˌkɑːrbəˈneɪʃəs /) asteroids are the most common variety, forming around 75% of known asteroids. [1] They are volatile-rich and distinguished by a very low albedo because their composition includes a large amount of carbon, in addition to rocks and minerals. They have an average density of about 1.7 g/cm3.
Lucy is a NASA space probe on a twelve-year journey to eight different asteroids. It is slated to visit two main belt asteroids as well as six Jupiter trojans – asteroids that share Jupiter 's orbit around the Sun , orbiting either ahead of or behind the planet.
An asteroid spectral type is assigned to asteroids based on their reflectance spectrum, color, and sometimes albedo. These types are thought to correspond to an asteroid's surface composition. For small bodies that are not internally differentiated, the surface and internal compositions are presumably similar, while large bodies such as Ceres ...
C-type asteroids are made of clay and silicate rocks, while S-types are composed of silicate materials and nickel-iron. Stony asteroids are part of the most common class of potentially hazardous ...
2020 CD3 (also CD3 for short) [ 11 ][ 12 ] is a tiny near-Earth asteroid (or minimoon) that ordinarily orbits the Sun but makes close approaches to the Earth–Moon system, in which it can temporarily enter Earth orbit through temporary satellite capture (TSC). It was discovered at the Mount Lemmon Observatory by astronomers Theodore Pruyne and ...
Apophis is of interest because it’s an S-type, or stony, asteroid, in contrast to Bennu, which is a C-type, or carbonaceous, asteroid. C-type asteroids are made of clay and silicate rocks, while ...
In the SMASS classification, Clifford is a Cb-type, which transitions from the carbonaceous C-type asteroids to the rare B-type asteroids. [1]According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Clifford measures 4.441 kilometers in diameter and its surface has an albedo of 0.142. [4]
162173 Ryugu (provisional designation 1999 JU 3) is a near-Earth object and a potentially hazardous asteroid of the Apollo group.It measures approximately 900 metres (3,000 ft) in diameter and is a dark object of the rare spectral type Cb, [11] with qualities of both a C-type asteroid and a B-type asteroid.