Evolution of the geometry of ejecta on day 224 (top left panel), 252 (top right panel), 336 (bottom left panel), and 1064 (bottom right panel). We note the formation of multiple equatorial rings and also the spatial distribution of the ionized lines as the system evolves. Here, a: [O III] λ5007, b: [O III] λ4959, c: Hα, d: Hβ, e: N III λ4638, f: [N II] λ5755, g: He II λ4686. Only dominant lines are marked. Here, 1 unit of x and y position correspond to x₂₂₄ = 6.3 × 10¹² cm, x₂₅₂ = 1.41 × 10¹³ cm, x₃₃₆ = 2.09 × 10¹³ cm, and x₁₀₆₄ = 1.66 × 10¹² cm.