Characteristics and composition
C-type asteroids are among the darkest objects in the solar system, having albedos that vary from 0.03 to 0.09. They have a chemical composition similar to that of the Sun but lacking molecular hydrogen, helium, and other volatile elements. Some have stated that their composition is like that of carbonaceous chondrite meteorites. C-type asteroids predominate in the outer reaches of the asteroid belt.
Observation and Exploration
C-type asteroids are too dim to view without a telescope.
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