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Broucke region HS.372

From Hristov, Hristova & Tanikawa (2026)

Broucke region HS.372 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 266.66 time units, published by Hristov, Hristova & Tanikawa (2026). Stable orbits related to Broucke’s isosceles orbit, with one body swinging through the other two. It is linearly stable (largest Floquet multiplier 1.000), so a small nudge only makes it wobble. The bodies pass within 0.000000147 of each other at a top speed of 2611, line up 336 times a period, and the computed loop closes to 4.2×10⁻¹⁸.

Measured over one period

Period: 266.6609509
Masses: 1 : 1 : 1
Energy: -1.55042
Angular momentum: 0
Closest approach: 1.5×10⁻⁷
Top speed: 2611
Path length: 667.98
Alignments per period: 336
Stability: stable (|λ|max 1.000, published)
Loop closure: 4.2×10⁻¹⁸

Neighbours on the map

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