Mock images of the SbSb45h merger (mass ratio is 1:1) viewed perpendicular to the orbital plane of a companion galaxy. Color scheme is surface brightness in the SDSS r band assuming luminosity distance, d_L = 100 Mpc. Each row shows a merger process in time sequence: before the first passage time (t_FP), the maximum separation time (t_MS), and units of the final coalescence time (t_FC), from left to right. Each column is plotted with different observation limits: μ_limit = 25 mag arcsec^-2 (top) and μ_limit = 28 mag arcsec^-2 (bottom). Background color represents observation limit.