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II.C.223

From Li & Liao (2017)

II.C.223 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 121.2 time units, published by Li & Liao (2017). The largest class in the atlas: hundreds of II.C orbits for seven mass ratios. It is unstable (largest Floquet multiplier 588.8), so a small nudge makes it unravel over a few periods. The bodies pass within 0.0127 of each other at a top speed of 8.87, line up 120 times a period, and the computed loop closes to 5.9×10⁻²⁵.

Measured over one period

Period: 121.1980465
Masses: 1 : 1 : 1
Energy: -1.32332
Angular momentum: 0
Closest approach: 0.01274
Top speed: 8.868
Path length: 316.60
Alignments per period: 120
Stability: unstable (|λ|max 588.8)
Loop closure: 5.9×10⁻²⁵

Neighbours on the map

All II.C orbits, the families of periodic three-body orbits, or the atlas map.