2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/34648Equatorial motion of test particles in the Kerr-de Sitter spacetimes is considered. Circular orbits are determined, their properties are discussed for both the black-hole and naked-singularity spacetimes, and their relevance for thin accretion discs is established.24 pages, 19 figures, REVTeX 4General Relativity and Quantum Cosmologytext