Atlas447 of 3,942

I.A.181

From Li, Jing & Liao (2018)

I.A.181 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 187.16 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 0.0000492 of each other at a top speed of 143, line up 322 times a period, and the computed loop closes to 1.3×10⁻²².

Measured over one period

Period: 187.1598824
Masses: 1 : 1 : 1
Energy: -1.84035
Angular momentum: 0
Closest approach: 4.9×10⁻⁵
Top speed: 142.5
Path length: 494.49
Alignments per period: 322
Topology: ababABAbabaBABababABAbabaBABababABAbabaBABababABAbabaBABababABAbabaBABababABAbabaBABababABAbabABABabaBABAbabABABabaBABAbabABABabaBABAbabABABabaBABAbabABABabaBABAbabABABabaBABAbabABABabaBAB (free-group class)
Stability: stable (|λ|max 1.000)
Loop closure: 1.3×10⁻²²

Neighbours on the map

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