When calculating aberration coefficients of secondary and higher order, there is a danger of misinterpreting the result. An example is given for a homogenous magnetic field and the source of the difficulty is described.
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Federal State Autonomous Educational Institution of Higher Education "Russian National Research Medical University named after N.I. Pirogov" of the Ministry of Health of the Russian Federation, Separate structural unit "Russian Gerontology Research and Clinical Centre", 16 1st Leonova Street, Moscow, Russia, 129226.
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