in the same region of the early Sun's protoplanetary disk, much closer to the Sun and at higher temperatures. The Grand tack hypothesis predicts that the primitive C-type asteroids were dispersed from their formation location by the migrations of Jupiter and Saturn and many were injected into the outer asteroid belt where we find them today. By the same mechanism (and others that result from planetary formation), simulations show that C-types can also be thrown outward to the trans-Neptunian region, where later they may become captured into the mean-motion resonances of Neptune. See also List of trans-Neptunian objects List of exceptional asteroids References External links 120216 120216 20040314