On June 11, 2008, On August 24, 2006, the International Astronomical Union (IAU) voted at the meeting of its Executive Committee to establish bright «dwarf planets beyond the orbit of Neptune as a new class of
substellar objects in the Solar System called «plutoids» (IAU press release).
Since Make - make orbits the Sun beyond the orbit of Neptune, the IAU also assigned it membership to a class of
substellar objects in the Solar System recently designated as «plutoids» (IAU press release).
In addition, Ceres» light spectrum suggests that it may have ammonium - rich clay at the surface, which would fit the expected ammonia - rich composition of large, differentiated substellar objects in the outer Solar System, including the «plutoids» defined on June 11, 2008 by the International Astronomical Union (IAU) as a new class of bright «dwarf planets beyond the orbit of Neptune (IAU press release
In addition, Ceres» light spectrum suggests that it may have ammonium - rich clay at the surface, which would fit the expected ammonia - rich composition of large, differentiated
substellar objects in the outer Solar System, including the «plutoids» defined on June 11, 2008 by the International Astronomical Union (IAU) as a new class of bright «dwarf planets beyond the orbit of Neptune (IAU press release
in the outer
Solar System, including the «plutoids» defined on June 11, 2008 by the International Astronomical Union (IAU) as a new class of bright «dwarf planets beyond the orbit of Neptune (IAU press release).