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For a full listing of known asteroid groups and families, see [[minor planet]].
===Spectral
In 1975, an asteroid [[taxonomy|taxonomic]] system based on [[color]], [[albedo]], and [[spectral line|spectral shape]] was developed [[Clark R. Chapman]], [[David Morrison]] and [[Ben Zellner]]. These properties are thought to correspond to the composition of the asteroid's surface material. Originally, they classified only three types of asteroids:
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