Atlas2,986 of 3,915

Schubart region HS.888

From Hristov, Hristova & Tanikawa (2026)

Schubart region HS.888 is a periodic orbit of the planar three-body problem: three equal masses that return to their starting positions and velocities every 290.2 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 0.00000139 of each other at a top speed of 849, line up 520 times a period, and the computed loop closes to 3.4×10⁻²⁰.

Measured over one period

Period: 290.1988358
Masses: 1 : 1 : 1
Energy: -1.91591
Angular momentum: 0
Closest approach: 1.4×10⁻⁶
Top speed: 849.3
Path length: 822.74
Alignments per period: 520
Stability: stable (|λ|max 1.000, published)
Loop closure: 3.4×10⁻²⁰

Neighbours on the map

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