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Choreography SC.161

From Simó (2001)

Choreography SC.161 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 13.773 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 9375), so a small nudge makes it unravel over a few periods. The bodies pass within 0.0532 of each other at a top speed of 4.9, line up 66 times a period, and the computed loop closes to 4.6×10⁻²⁷.

Measured over one period

Period: 13.77334925
Masses: 1 : 1 : 1
Energy: -4.50000
Angular momentum: 1.1239
Closest approach: 0.05316
Top speed: 4.898
Path length: 65.837
Alignments per period: 66
Stability: unstable (|λ|max 9.4×10¹⁴)
Loop closure: 4.6×10⁻²⁷

Neighbours on the map

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