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We study null rays propagation in a spacetime of staticSchwarzschild--Tangherlini black holes in arbitrary number of dimensions. Wefocus on the bending angle and the retarded time delay for rays emitted in thevicinity of a black hole and propagating to the infinity. We obtain an analyticexpression in terms of elementary functions which approximate the bending angleand time delay in these spacetimes with high accuracy. We analyze the relativeerror of the developed analytic approximations and show that it is quite smallin the complete domain of the parameter space for the rays reaching theinfinity and for different number of the spacetime dimensions. Possibleapplications of the obtained results are briefly discussed.

Ray-tracing in four and higher dimensional black holes: An analytical approximation