Chadwick A. Trujillo is an American astronomer, discoverer of minor planets such as being the co-discoverer of Makemake, and the co-discoverer of Eris, the most massive dwarf planet known in the Solar
208996 Achlys is a large trans-Neptunian object orbiting the Sun in the Kuiper belt, a region of icy bodies beyond Neptune. It was discovered on 13 January 2003 by Chad Trujillo and Michael E. Brown a
The 1.2-meter Samuel Oschin telescope that was used to discover Achlys at Palomar Observatory