Named in memory of Glauco de Mottoni y Palacios (1901–1988), Italian astronomer, engineer and collaborator at the Milan and Paris Observatories. A specialist in the visual observation of the planet Mars, he distinguished himself with a large cartographic work on the aspect of the Martian surface between 1907 and 1971. He designed telescopes, often in an unconventional manner. A keen popularizer of astronomy, he founded the ”Urania“ association in Genoa in 1951 and directed it until his death. (M 16444) _ _.