Atlas1,256 of 3,942

I.B.161

From Li & Liao (2017)

I.B.161 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 149.49 time units, published by Li & Liao (2017). Class I.B orbits, for equal and unequal masses. It is unstable (largest Floquet multiplier 35.71), so a small nudge makes it unravel over a few periods. The bodies pass within 0.00126 of each other at a top speed of 28.1, line up 164 times a period, and the computed loop closes to 2.8×10⁻²⁵.

Measured over one period

Period: 149.4861493
Masses: 1 : 1 : 1
Energy: -1.39987
Angular momentum: 0
Closest approach: 0.001264
Top speed: 28.13
Path length: 376.53
Alignments per period: 164
Topology: abaBAbabABabaBAbabABabaBAbabABAbaBABabABAbaBABabABAbabABabaBAbabABabaBAbabABabaBABabABAbaBABabABAbaBAB (free-group class)
Stability: unstable (|λ|max 35.71)
Loop closure: 2.8×10⁻²⁵

Neighbours on the map

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