Atlas345 of 3,942

I.A.131

From Li, Jing & Liao (2018)

I.A.131 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 146.47 time units, published by Li, Jing & Liao (2018). Class I.A orbits found with Liao’s clean numerical simulation method, for a third body of varying mass. It is linearly stable (largest Floquet multiplier 1.000), so a small nudge only makes it wobble. The bodies pass within 0.0000204 of each other at a top speed of 221, line up 286 times a period, and the computed loop closes to 6.4×10⁻¹⁷.

Measured over one period

Period: 146.4674258
Masses: 1 : 1 : 1
Energy: -1.98148
Angular momentum: 0
Closest approach: 2.0×10⁻⁵
Top speed: 221.3
Path length: 376.19
Alignments per period: 286
Topology: ababABAbabaBABAbabaBABAbabaBABAbabaBABAbabaBABababABABababABABababABABababABABababABABabaBABAbabaBABAbabaBABAbabaBABAbabaBABAbabABABababABABababABABababABABababABAB (free-group class)
Stability: stable (|λ|max 1.000)
Loop closure: 6.4×10⁻¹⁷

Neighbours on the map

All I.A orbits, the families of periodic three-body orbits, or the atlas map.