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Choreography NC.120

From Hristov, Hristova, Puzynin, Puzynina, Sharipov & Tukhliev (2024)

Choreography NC.120 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 125.16 time units, published by Hristov, Hristova, Puzynin, Puzynina, Sharipov & Tukhliev (2024). Choreographies whose knot is not a power of the figure-eight’s: three bodies on one closed curve with a topology of its own. Computed to 180 digits; all unstable. It is unstable (largest Floquet multiplier 26076305190893), so a small nudge makes it unravel over a few periods. The bodies pass within 0.0011 of each other at a top speed of 30.3, line up 198 times a period, and the computed loop closes to 2.2×10⁻¹⁷.

Measured over one period

Period: 125.1592201
Masses: 1 : 1 : 1
Energy: -1.80654
Angular momentum: 0
Closest approach: 0.001101
Top speed: 30.26
Path length: 361.05
Alignments per period: 198
Stability: unstable (|λ|max 2.6×10¹³, published)
Loop closure: 2.2×10⁻¹⁷

Neighbours on the map

All Nontrivial choreographies, the families of periodic three-body orbits, or the atlas map.