which it would be separately, but concurrently, classified. [ 136 ] On September 13, 2006, the IAU included Pluto, Eris , and the Eridian moon Dysnomia in their Minor Planet Catalogue , giving them the official minor planet designations “(134340) Pluto”, “(136199) Eris”, and “(136199) Eris I Dysnomia”. [ 137 ]