“…We consider the angles between geodesic rays (ω → γω) in the upper half plane H, connecting a fixed point ω ∈ H with the (finitely many) points γω in its Γ-orbit, lying in increasingly large hyperbolic balls. These angles are wellknown to be uniformly distributed (see, e.g., [19]) and their uniform distribution in angular sectors can be made effective [1,7,8,14,15,16,20,21].…”