Hyperion Tumbling

θ: —
ω: —
λ: —
Chaos: —
Hyperion — Saturn's Chaotic Moon
Hyperion's elongated shape (A≠B≠C) causes chaotic tumbling due to Saturn's gravity gradient torque. Equation: θ̈ = −(3/2)(B-A)/C·(1/r³)·sin2(θ−f). Phase space shows chaotic sea. Lyapunov time ≈ 36 days — entirely unpredictable orientation.