Atlas507 of 3,942

I.A.86

m₃ = 0.5

From Li, Jing & Liao (2018)

I.A.86 m₃ = 0.5 is a periodic orbit of the planar three-body problem: three masses in the ratio 1 : 1 : 0.5 that return to their starting positions and velocities every 88.988 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 0.000033 of each other at a top speed of 201, line up 186 times a period, and the computed loop closes to 6.9×10⁻¹⁸.

Measured over one period

Period: 88.98832694
Masses: 1 : 1 : 0.5
Energy: -1.35758
Angular momentum: 0
Closest approach: 3.3×10⁻⁵
Top speed: 201.0
Path length: 232.99
Alignments per period: 186
Topology: aabAbaBAbaBAbaBAbaBAbbAAbaBBaabAbaBABaBAbaBAbaBAbaBAbaBBaabAbbAABaBAbaBAbaBAbaBAbaBBaaBAbbAABaBAbabAbaBAbaBAbaBAbaBAbbAABaBB (free-group class)
Stability: stable (|λ|max 1.000)
Loop closure: 6.9×10⁻¹⁸

Neighbours on the map

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