The colors reflect the composition of these asteroids, dry and stony in the center, water-rich and primitive towards the edge, water-rich asteroids which may have seeded the oceans and the seas that we find on our planet when they bombarded the  Earth at an earlier time.
Boje označavaju sastav ovih asteroida, suhih i kamenih u sredini, bogatih vodom i primitivnih  prema rubovima, asteroidi bogati vodom  koji su možda posijali oceane i mora na našem planetu dok su u prošlosti bombardirali Zemlju.