G-type asteroid

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G-type asteroids are a relatively uncommon type of carbonaceous asteroid. The most notable asteroid in this class is 1 Ceres.

[edit] Characteristics

Generally similar to the C-type objects, but containing a strong ultraviolet absorption feature below 0.5μm. An absorption feature around 0.7μm may also be present, which is indicative of phyllosilicate minerals such as clays or mica.

In the SMASS classification the G-type corresponds to the Cgh and Cg types, depending on the presence or absence (respectively) of the absorption feature at 0.7μm. The G-type, C-type and some rare types are sometimes collected together into a wider C-group of carbonaceous asteroids.

[edit] See also

• Category:G-type asteroids

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