Figure 5
From: Exact solution to the problem of N bodies forming a multi-layer rotating structure
a The four-layer axisymmetric structure with N 2 = 4 and N 3 = 2; the angle φ j,1 = 0.5·Δφ 0 alternates with the angle φ j,1 = 0; P rd  = 2 year; r 1  = 1.491651 × 1011 m, m 1  = 1.695854 × 1027 kg and m SS  = 4.373151 × 1030 kg. b The three-layer axisymmetric structure with N 2 = 3 and N 3 = 3; φ j,1 = 0, 0.5·Δφ 0, and 0; P rd  = 1.5 year; r 1  = 1.491990 × 1011 m, m 1  = 9.018554 × 1026 kg and m SS  = 2.971883 × 1030 kg. The rest designations are the same as in Figure 2.