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Choreography SC.218

From Simó (2001)

Choreography SC.218 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 15.028 time units, published by Simó (2001). Carles Simó’s catalogue of three-body choreographies with nonzero angular momentum, the curves that made choreographies famous. All unstable except the figure-eight. It is unstable (largest Floquet multiplier 1.4913e+23), so a small nudge makes it unravel over a few periods. The bodies pass within 0.0186 of each other at a top speed of 7.9, line up 66 times a period, and the computed loop closes to 2.6×10⁻²⁴.

Measured over one period

Period: 15.02803719
Masses: 1 : 1 : 1
Energy: -4.50000
Angular momentum: 1.0574
Closest approach: 0.01864
Top speed: 7.904
Path length: 70.078
Alignments per period: 66
Stability: unstable (|λ|max 1.5×10²³)
Loop closure: 2.6×10⁻²⁴

Neighbours on the map

All Simó’s choreographies, the families of periodic three-body orbits, or the atlas map.