Ramón María Aller Ulloa (1878–1966) was a Galician astronomer, mathematician and Catholic priest, professor of geometry and mathematical analysis at University of Santiago de Compostela, in 1944 the University created and assigned to him the first chair in astronomy, as well he was a member of the Spanish Royal Academy of Sciences. Aller Ulloa was a specialist in Double stars discovering 4 of them named after him (Aller1,Aller2,Aller3 and Aller4) and inventor of several devices used for measurements and observation.