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Moth region HS.904

From Hristov, Hristova & Tanikawa (2026)

Moth region HS.904 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 459.4 time units, published by Hristov, Hristova & Tanikawa (2026). Stable orbits from the moth-like part of the search domain, between the figure-eight and the Schubart regions. It is linearly stable (largest Floquet multiplier 1.000), so a small nudge only makes it wobble. The bodies pass within 0.0167 of each other at a top speed of 7.73, line up 512 times a period, and the computed loop closes to 4.3×10⁻²⁷.

Measured over one period

Period: 459.4026180
Masses: 1 : 1 : 1
Energy: -1.41660
Angular momentum: 0
Closest approach: 0.01671
Top speed: 7.729
Path length: 1170.2
Alignments per period: 512
Topology: (abaBAbabAB)³² (free-group class)
Stability: stable (|λ|max 1.000, published)
Loop closure: 4.3×10⁻²⁷

Neighbours on the map

All Moth region, the families of periodic three-body orbits, or the atlas map.