Atlas3,863 of 3,942

AAABabAbaB

(1.12, 0.999, 0.88)

From Three Body Orbits (2026)

AAABabAbaB (1.12, 0.999, 0.88) is a periodic orbit of the planar three-body problem: three masses in the ratio 1.12 : 0.999 : 0.88 that return to their starting positions and velocities every 8.049 time units, published by Three Body Orbits (2026). Forty-two periodic orbits of topologies absent from the checked catalogues, found in a September 2026 search at unequal masses: the middle body lighter or heavier than the outer two, or all three different. Each is named by its free-group word, a few by a nickname; all are unstable. Candidate new families relative to the catalogues checked, not established discoveries. It is unstable (largest Floquet multiplier 24.82), so a small nudge makes it unravel over a few periods. The bodies pass within 0.0408 of each other at a top speed of 5.37, line up 16 times a period, and the computed loop closes to 2.7×10⁻²⁸. The search, its checks and the catalogue comparison are in the research note.

Measured over one period

Period: 8.048969441
Masses: 1.12 : 0.999 : 0.88
Energy: -2.07231
Angular momentum: 0
Closest approach: 0.04079
Top speed: 5.373
Path length: 25.211
Alignments per period: 16
Topology: aaaBAbabAB (free-group class)
Stability: unstable (|λ|max 24.82)
Loop closure: 2.7×10⁻²⁸

Neighbours on the map

All New unequal-mass families, the families of periodic three-body orbits, or the atlas map.