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ASTEROID TYPES & GROUPS
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G-class asteroid


Ceres
Ceres: a G-class asteroid
Image credit: NASA/Hubble
A dark asteroid belonging to a subcategory of C-class asteroids, distinguished by having a very strong ultraviolet absorption feature at wavelengths shorter than 0.4 microns due to water of hydration in the surface rocks. G-class asteroids, of which the best known and largest example is Ceres (now officially classified as a dwarf planet), have albedos of 0.05 to 0.09.


Related category

   • ASTEROIDS AND OTHER MINOR PLANETS: TYPES AND GROUPS


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