Confirmation of the distant gradient along ϕ₂ for NGC 1904. Left: distance gradient along ϕ₂ seen in the simulations of NGC 1904. Middle left: Top and bottom overdensities of stars (in cyan and magenta, respectively). Potential GC members that fall within r_J are shown as empty black circles, while those outside r_J are shown in yellow. Middle right: distance gradient can be seen in the main sequence and subgiant branches given the observed differences in magnitude. Right: correcting for the distance differences leads to the overlapping of selected stars within the CMD supporting the present of the distance gradient.