This lightcone visualization is a flythrough of a small part of the SPHEREx sky (the angular size of the lightcone is 130 square degrees and the redshift depth is z=1.4). The synthetic catalog was generated using a halo occupation distribution method that takes into account the different types of galaxies seen by SPHEREx (the mock galaxies in the visualization are HST CANDELS images) and is based on the trillion-particle "Outer Rim"
simulation carried out with the HACC code on Mira at the Argonne Leadership Computing Facility. This visualization results from the work of SPHEREx team members in the Cosmological Physics and Advanced Computing group.