Behavior of the centers (x_n, y_n) for the n  =  0 and n  =  1 images of equatorial source rings on the image plane Equation (1). We show the horizontal components (x_n; top row), vertical components (y_n; second row), relative position ((x₀  −  x₁, y₀  −  y₁); third row), and displacement (∣(x₀, y₀)  −  (x₁, y₁)∣; bottom row) of the image centers as a function of spin (subplot horizontal axes), inclination (θ_o  ∈  {5^∘, 15^∘, …, 45^∘}; columns) and source ring radii (r_s  ∈  {2M, 3M, …, 10M}; colored curves). Quantities are shown in units of the mass-to-distance ratio θ_g  =  M/D.