Example r-band mock images of three ∼L_⋆ galaxies from CoCo at a fiducial distance of 50 Mpc. From left to right, the images have surface brightness limits of μ_lim = 27, 29 and 31 magnitudes per square arcsecond, respectively. The dynamic range of each image runs from μ_lim + 1 (white) to μ_lim − 9 (black). We have embedded these models in the same fiducial field from the DESI Legacy Imaging surveys. Further details of how we generate these mock images are given in the text. From top to bottom, the stellar masses of the galaxies are log₁₀M_⋆/M_⊙ = (10.1, 10.6, 10.1), and their virial masses are log₁₀M_vir/M_⊙ = (11.8, 12.2, 12.2).