The formation of polygonal satellite vortices due to the rotation of the fluid by a bottom disk is studied. The results obtained for a normal fluid (water) are compared with that observed for pure electron plasma in Malmberg–Penning traps. The comparison shows similar patterns of vortices produced in two completely different systems, providing the experimental evidence of the direct analogy between the polygonal satellite vortices observed in a normal fluid and the vortices in pure electron plasma.