Atlas564 of 3,942

I.A.75

m₃ = 0.5

From Li, Jing & Liao (2018)

I.A.75 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 85.756 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 0.000343 of each other at a top speed of 62.3, line up 166 times a period, and the computed loop closes to 1.2×10⁻²⁴.

Measured over one period

Period: 85.75576697
Masses: 1 : 1 : 0.5
Energy: -1.29900
Angular momentum: 0
Closest approach: 3.4×10⁻⁴
Top speed: 62.31
Path length: 221.93
Alignments per period: 166
Topology: aabAbaBABaBAbabABaBABabAbaaBBabAAbbABaaBAbbAAbaBBaabAbbAABaBAbabAbaBABabAbabABaBAAbbABaaBBabAAbaBBaaBAbbAABaBB (free-group class)
Stability: stable (|λ|max 1.000)
Loop closure: 1.2×10⁻²⁴

Neighbours on the map

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