Atlas1,473 of 3,915

II.C.67

m₃ = 2

From Li & Liao (2017)

II.C.67 m₃ = 2 is a periodic orbit of the planar three-body problem: three masses in the ratio 1 : 1 : 2 that return to their starting positions and velocities every 198.41 time units, published by Li & Liao (2017). The largest class in the atlas: hundreds of II.C orbits for seven mass ratios. It is linearly stable (largest Floquet multiplier 1.000), so a small nudge only makes it wobble. The bodies pass within 0.000012 of each other at a top speed of 471, line up 340 times a period, and the computed loop closes to 1.3×10⁻²¹.

Measured over one period

Period: 198.4069997
Masses: 1 : 1 : 2
Energy: -2.95015
Angular momentum: 0
Closest approach: 1.2×10⁻⁵
Top speed: 470.5
Path length: 592.29
Alignments per period: 340
Stability: stable (|λ|max 1.000)
Loop closure: 1.3×10⁻²¹

Neighbours on the map

All II.C orbits, the families of periodic three-body orbits, or the atlas map.