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![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/88/SPHERE_image_of_Hygiea.jpg/360px-SPHERE_image_of_Hygiea.jpg)
Hygiea (minor planet designation: 10 Hygiea) is a major asteroid located in the main asteroid belt. It is the fourth-largest asteroid in the Solar System by both volume and mass.