Apparent NUV magnitude evolution of model nopwr, Pwr1e40 and Pwr1e41 of Dessart & Hillier (2022). The solid lines represent light curves at a distance of z = 0.01 (∼40 Mpc), the dashed thin lines represent light curves at z = 0.025 (∼100 Mpc) and the dotted lines represent light curves at z = 0.1 (∼400 Mpc). The red dashed thick line represents the limiting magnitude of a 2 × 150 s exposure in NUV band for CSST.