 Ramón María Aller Ulloa

Ramón María Aller Ulloa (1888-1966) was a Spanish astronomer and physicist known for his contributions to various fields in astronomy. He played an important role in the development of astrophysics in Spain and was involved in numerous scientific research projects throughout his career. Aller Ulloa worked on topics such as stellar spectra and the physical properties of stars, and he also had a role in the establishment of the Spanish National Astronomy Observatory.