Atlas2,907 of 3,915

Schubart region HS.872

From Hristov, Hristova & Tanikawa (2026)

Schubart region HS.872 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 280.68 time units, published by Hristov, Hristova & Tanikawa (2026). Stable orbits that pass extremely close to a binary collision, descended from Schubart’s rectilinear orbit. They needed 100-digit arithmetic to find. It is linearly stable (largest Floquet multiplier 1.000), so a small nudge only makes it wobble. The bodies pass within 0.000137 of each other at a top speed of 85.6, line up 524 times a period, and the computed loop closes to 1.6×10⁻²⁴.

Measured over one period

Period: 280.6814137
Masses: 1 : 1 : 1
Energy: -1.94357
Angular momentum: 0
Closest approach: 1.4×10⁻⁴
Top speed: 85.62
Path length: 762.28
Alignments per period: 524
Stability: stable (|λ|max 1.000, published)
Loop closure: 1.6×10⁻²⁴

Neighbours on the map

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